Wheels Up Experience (UP) 10-Q 9 Nov 23 2023 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Sep. 30, 2023	Nov. 06, 2023
Cover [Abstract]
Document type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-39541
Entity registrant name	WHEELS UP EXPERIENCE INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	98-1617611
Entity Address, Address Line One	601 West 26th Street
Entity Address, Address Line Two	Suite 900
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10001
City Area Code	212
Local Phone Number	257-5252
Title of 12(b) Security	Class A common stock, $0.0001 par value per share
Trading Symbol	UP
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		166,812,505
Entity CIK	0001819516
Amendment Flag	false
Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Fiscal Year Focus	2023

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 244,847	$ 585,881
Accounts receivable, net	46,773	112,383
Other receivables	7,452	5,524
Parts and supplies inventories, net	23,979	29,000
Aircraft inventory	2,073	24,826
Aircraft held for sale	26,855	8,952
Prepaid expenses	46,506	39,715
Other current assets	11,283	13,338
Total current assets	409,768	819,619
Property and equipment, net	362,053	394,559
Operating lease right-of-use assets	73,788	106,735
Goodwill	214,808	348,118
Intangible assets, net	122,783	141,765
Other non-current assets	144,494	112,429
Total assets	1,327,694	1,923,225
Current liabilities:
Current maturities of long-term debt	25,227	27,006
Accounts payable	25,568	43,166
Accrued expenses	100,814	148,947
Deferred revenue, current	691,214	1,075,133
Other current liabilities	26,197	49,968
Total current liabilities	869,020	1,344,220
Long-term debt, net	235,429	226,234
Deferred revenue, non-current	1,155	1,742
Operating lease liabilities, non-current	58,912	82,755
Warrant liability	66	751
Other non-current liabilities	17,873	15,603
Total liabilities	1,182,455	1,671,305
Commitments and contingencies (Note 13)
Equity:
Common Stock, $0.0001 par value; 250,000,000 authorized; 167,080,450 and 25,198,298 shares issued and 166,804,743 and 24,933,857 shares outstanding as of September 30, 2023 and December 31, 2022, respectively	17	3
Additional paid-in capital	1,849,093	1,545,530
Accumulated deficit	(1,682,145)	(1,275,873)
Accumulated other comprehensive loss	(14,007)	(10,053)
Treasury stock, at cost, 275,707 and 264,441 shares, respectively	(7,718)	(7,687)
Total Wheels Up Experience Inc. stockholders’ equity	145,239	251,920
Non-controlling interests	0	0
Total equity	145,239	251,920
Total liabilities and equity	$ 1,327,694	$ 1,923,225

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Common stock par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock authorized (in shares)	250,000,000	250,000,000
Common stock issued (in shares)	167,080,450	25,198,298
Common stock outstanding (in shares)	166,804,743	24,933,857
Treasury stock, at cost (in shares)	275,707	264,441

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenue	$ 320,063	$ 420,356	$ 1,006,937	$ 1,171,503
Costs and expenses:
Cost of revenue	299,887	403,042	981,581	1,144,698
Technology and development	19,962	16,639	50,265	42,436
Sales and marketing	22,548	30,830	71,500	87,761
General and administrative	42,853	44,323	122,334	130,200
Depreciation and amortization	15,459	16,500	45,027	46,862
Gain on sale of aircraft held for sale	(7,841)	(1,316)	(11,328)	(3,950)
Impairment of goodwill	56,200	62,000	126,200	62,000
Total costs and expenses	449,068	572,018	1,385,579	1,510,007
Loss from operations	(129,005)	(151,662)	(378,642)	(338,504)
Other income (expense):
Loss on divestiture		0	(2,991)	0
Loss on extinguishment of debt	(1,936)	0	(2,806)	0
Change in fair value of warrant liability	(61)	2,504	685	8,265
Interest income	404	1,130	6,090	1,612
Interest expense	(11,258)	0	(27,035)	0
Other income (expense), net	613	(625)	(822)	(1,505)
Total other income (expense)	(15,229)	3,009	(26,879)	8,372
Loss before income taxes	(144,234)	(148,653)	(405,521)	(330,132)
Income tax benefit (expense)	(579)	(185)	(751)	(505)
Net loss	(144,813)	(148,838)	(406,272)	(330,637)
Less: Net loss attributable to non-controlling interests	0	0	0	(387)
Net loss attributable to Wheels Up Experience Inc.	$ (144,813)	$ (148,838)	$ (406,272)	$ (330,250)
Net loss per share of Common Stock (Note 18)
Basic (in dollars per share)	$ (3.51)	$ (6.09)	$ (13.22)	$ (13.52)
Diluted (in dollars per share)	$ (3.51)	$ (6.09)	$ (13.22)	$ (13.52)
Weighted-average shares of Common Stock outstanding:
Basic (in shares)	41,261,003	24,435,096	30,737,324	24,434,787
Diluted (in shares)	41,261,003	24,435,096	30,737,324	24,434,787

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (144,813)	$ (148,838)	$ (406,272)	$ (330,637)
Other comprehensive income (loss):
Foreign currency translation adjustments	(8,173)	(8,329)	(3,954)	(16,647)
Comprehensive loss	(152,986)	(157,167)	(410,226)	(347,284)
Less: Comprehensive loss attributable to non-controlling interests	0	0	0	(387)
Comprehensive loss attributable to Wheels Up Experience Inc.	$ (152,986)	$ (157,167)	$ (410,226)	$ (346,897)

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional paid-in capital	Accumulated deficit	Accumulated other comprehensive loss	Treasury stock	Non-controlling interests
Beginning balance (in shares) at Dec. 31, 2021		24,583,457
Beginning balance at Dec. 31, 2021	$ 736,228	$ 2	$ 1,450,862	$ (720,713)	$ 0	$ 0	$ 6,077
Beginning balance (in shares) at Dec. 31, 2021						0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation	22,554		13,659				8,895
Change in non-controlling interests allocation	0		11,743				(11,743)
Shares withheld for employee taxes on vested equity (in shares)						168,238
Shares withheld for employee taxes on vested equity awards	(6,107)					$ (6,107)
Issuance of Common Stock upon settlement of restricted stock units (in shares)		7,673
Net loss	(89,040)			(88,653)			(387)
Ending balance (in shares) at Mar. 31, 2022		24,591,130
Ending balance at Mar. 31, 2022	663,635	$ 2	1,476,264	(809,366)	0	$ (6,107)	2,842
Ending balance (in shares) at Mar. 31, 2022						168,238
Beginning balance (in shares) at Dec. 31, 2021		24,583,457
Beginning balance at Dec. 31, 2021	736,228	$ 2	1,450,862	(720,713)	0	$ 0	6,077
Beginning balance (in shares) at Dec. 31, 2021						0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(330,637)
Ending balance (in shares) at Sep. 30, 2022		24,813,155
Ending balance at Sep. 30, 2022	447,435	$ 2	1,522,391	(1,050,964)	(16,647)	$ (7,347)	0
Ending balance (in shares) at Sep. 30, 2022						238,658
Beginning balance (in shares) at Mar. 31, 2022		24,591,130
Beginning balance at Mar. 31, 2022	663,635	$ 2	1,476,264	(809,366)	0	$ (6,107)	2,842
Beginning balance (in shares) at Mar. 31, 2022						168,238
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation	20,781		12,328				8,453
Change in non-controlling interests allocation	0		11,295				(11,295)
Shares withheld for employee taxes on vested equity (in shares)						23,086
Shares withheld for employee taxes on vested equity awards	(582)					$ (582)
Issuance of Common Stock upon settlement of restricted stock units (in shares)		27,625
Net loss	(92,760)			(92,760)
Other comprehensive loss	(8,318)				(8,318)
Ending balance (in shares) at Jun. 30, 2022		24,618,755
Ending balance at Jun. 30, 2022	582,756	$ 2	1,499,887	(902,126)	(8,318)	$ (6,689)	0
Ending balance (in shares) at Jun. 30, 2022						191,324
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation	22,504		13,961				8,543
Change in non-controlling interests allocation	0		8,543				(8,543)
Shares withheld for employee taxes on vested equity (in shares)						47,334
Shares withheld for employee taxes on vested equity awards	(658)					$ (658)
Issuance of Common Stock upon settlement of restricted stock units (in shares)		194,400
Net loss	(148,838)			(148,838)
Other comprehensive loss	(8,329)				(8,329)
Ending balance (in shares) at Sep. 30, 2022		24,813,155
Ending balance at Sep. 30, 2022	$ 447,435	$ 2	1,522,391	(1,050,964)	(16,647)	$ (7,347)	0
Ending balance (in shares) at Sep. 30, 2022						238,658
Beginning balance (in shares) at Dec. 31, 2022	24,933,857	25,198,298
Beginning balance at Dec. 31, 2022	$ 251,920	$ 3	1,545,530	(1,275,873)	(10,053)	$ (7,687)	0
Beginning balance (in shares) at Dec. 31, 2022	264,441					264,441
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation	$ 11,210		9,951				1,259
Change in non-controlling interests allocation	0		1,259				(1,259)
Issuance of Common Stock upon settlement of restricted stock units (in shares)		227,513
Net loss	(100,866)			(100,866)
Other comprehensive loss	923				923
Ending balance (in shares) at Mar. 31, 2023		25,425,811
Ending balance at Mar. 31, 2023	$ 163,187	$ 3	1,556,740	(1,376,739)	(9,130)	$ (7,687)	0
Ending balance (in shares) at Mar. 31, 2023						264,441
Beginning balance (in shares) at Dec. 31, 2022	24,933,857	25,198,298
Beginning balance at Dec. 31, 2022	$ 251,920	$ 3	1,545,530	(1,275,873)	(10,053)	$ (7,687)	0
Beginning balance (in shares) at Dec. 31, 2022	264,441					264,441
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares withheld for employee taxes on vested equity (in shares)	275,707
Net loss	$ (406,272)
Ending balance (in shares) at Sep. 30, 2023	166,804,743	167,080,450
Ending balance at Sep. 30, 2023	$ 145,239	$ 17	1,849,093	(1,682,145)	(14,007)	$ (7,718)	0
Ending balance (in shares) at Sep. 30, 2023	275,707					275,707
Beginning balance (in shares) at Mar. 31, 2023		25,425,811
Beginning balance at Mar. 31, 2023	$ 163,187	$ 3	1,556,740	(1,376,739)	(9,130)	$ (7,687)	0
Beginning balance (in shares) at Mar. 31, 2023						264,441
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation	6,604		6,592				12
Change in non-controlling interests allocation	0		12				(12)
Reclassification of equity awards	328		328
Issuance of Common Stock upon settlement of restricted stock units (in shares)		196,685
Reverse stock split fractional shares (in shares)						859
Reverse stock split fractional shares	(3)					$ (3)
Net loss	(160,593)			(160,593)
Other comprehensive loss	3,296				3,296
Ending balance (in shares) at Jun. 30, 2023		25,622,496
Ending balance at Jun. 30, 2023	12,819	$ 3	1,563,672	(1,537,332)	(5,834)	$ (7,690)	0
Ending balance (in shares) at Jun. 30, 2023						265,300
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation	3,509		3,503				6
Change in non-controlling interests allocation	0		6				(6)
Issuance of common stock and Deferred Shares in connection with debt issuance (in shares)		141,313,671
Issuance of Common Stock and Deferred Shares in connection with debt issuance	281,926	$ 14	281,912
Shares withheld for employee taxes on vested equity (in shares)						10,407
Shares withheld for employee taxes on vested equity awards	(28)					$ (28)
Issuance of Common Stock upon settlement of restricted stock units (in shares)		144,283
Net loss	(144,813)			(144,813)
Other comprehensive loss	$ (8,173)				(8,173)
Ending balance (in shares) at Sep. 30, 2023	166,804,743	167,080,450
Ending balance at Sep. 30, 2023	$ 145,239	$ 17	$ 1,849,093	$ (1,682,145)	$ (14,007)	$ (7,718)	$ 0
Ending balance (in shares) at Sep. 30, 2023	275,707					275,707

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities
Net loss	$ (406,272)	$ (330,637)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	45,027	46,862
Equity-based compensation	21,650	65,839
Payment in kind interest	972	0
Amortization of deferred financing costs and debt discount	2,390	0
Change in fair value of warrant liability	(685)	(8,265)
Gain on sale of aircraft held for sale	(11,328)	(3,950)
Loss on divestiture	2,991	0
Loss on extinguishment of debt	2,806	0
Impairment of goodwill	126,200	62,000
Other	(2,099)	(489)
Changes in assets and liabilities:
Accounts receivable	22,513	(31,474)
Parts and supplies inventories	5,074	(8,544)
Aircraft inventory	386	(33,231)
Prepaid expenses	(8,589)	(8,065)
Other non-current assets	(36,988)	(27,534)
Accounts payable	(15,177)	(2,885)
Accrued expenses	(36,293)	(1,131)
Deferred revenue	(378,949)	(2,653)
Other assets and liabilities	4,877	(4,184)
Net cash used in operating activities	(661,494)	(288,341)
Cash flows from investing activities
Purchases of property and equipment	(12,312)	(80,039)
Purchases of aircraft held for sale	(2,311)	(39,894)
Proceeds from sale of aircraft held for sale, net	53,911	41,833
Proceeds from sale of divested business, net	13,200	0
Acquisitions of businesses, net of cash acquired	0	(75,093)
Capitalized software development costs	(16,041)	(18,532)
Other	172	0
Net cash (used in) provided by investing activities	36,619	(171,725)
Cash flows from financing activities
Purchase shares for treasury	0	(7,347)
Purchase of fractional shares	(3)	0
Proceeds from notes payable	70,000	0
Repayment of notes payable	(70,000)	0
Proceeds from long-term debt, net	343,000	0
Payment of debt issuance costs in connection with debt	(19,630)	0
Repayments of long-term debt	(40,196)	0
Net cash (used in) provided by financing activities	283,171	(7,347)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(4,287)	(7,395)
Net decrease in cash, cash equivalents and restricted cash	(345,991)	(474,808)
Cash, cash equivalents and restricted cash, beginning of period	620,153	786,722
Cash, cash equivalents and restricted cash, end of period	274,162	311,914
Supplemental disclosure of cash flow information:
Cash paid for interest	$ 23,919	$ 0

SUMMARY OF BUSINESS AND SIGNIFI

SUMMARY OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
SUMMARY OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES Wheels Up Experience Inc. (together with its consolidated subsidiaries, “Wheels Up”, the “Company”, “we”, “us”, or “our”) is a leading provider of on-demand private aviation in the United States (“U.S.”) and one of the largest private aviation companies in the world. Wheels Up offers a complete global aviation solution with a large, modern and diverse fleet, backed by an uncompromising commitment to safety and service. Customers can access membership programs, charter, aircraft management services and whole aircraft sales, as well as unique commercial travel benefits through a strategic partnership with Delta Air Lines, Inc. (“Delta”). Wheels Up also offers freight, safety and security solutions and managed services to individuals, industry, government and civil organizations. Wheels Up is guided by the mission to connect private flyers to aircraft, and one another, through an open platform that seamlessly enables life’s most important experiences. Powered by a global private aviation marketplace connecting its base of approximately 11,000 members and customers to a network of approximately 1,500 safety-vetted and verified private aircraft, Wheels Up is widening the aperture of private travel for millions of consumers globally. With the Wheels Up mobile app and website, members and customers have the digital convenience to search, book and fly. Basis of Presentation The condensed consolidated financial statements and accompanying notes have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial reporting and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the financial information and footnotes required by U.S. GAAP for annual financial statements. In the opinion of the Company’s management, the condensed consolidated financial statements include all adjustments necessary for the fair presentation of the Company’s balance sheet as of September 30, 2023, its results of operations, including its comprehensive loss and stockholders' equity for the three months ended September 30, 2023 and 2022, and its results of operations, including its comprehensive loss and stockholders' equity and its cash flows for the nine months ended September 30, 2023 and 2022. All adjustments are of a normal recurring nature. The results for the three and nine months ended September 30, 2023 are not necessarily indicative of the results to be expected for any subsequent quarter or for the fiscal year ending December 31, 2023. Immediately after the close of business on the New York Stock Exchange (the “ NYSE”) on June 7, 2023, the reverse stock split of Wheels Up’s outstanding shares of Common Stock, at a reverse stock split ratio of 1-for-10 (the “Reverse Stock Split”) and contemporaneously with the Reverse Stock Split, a proportionate reduction in the number of authorized shares of Common Stock from 2.5 billion shares of Common Stock to 250 million shares (the “Authorized Share Reduction”). Accordingly, the presentation of all periods covered by the condensed consolidated financial statements contained herein have been adjusted to give retroactive effect to the Reverse Stock Split, including adjustments to per share net loss and other per share of Common Stock amounts. These condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information. Consistent with these requirements, this Form 10-Q does not include all the information required by GAAP for complete financial statements. As a result, this Form 10-Q should be read in conjunction with the audited consolidated financial statements and related notes included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2022, filed with the Securities and Exchange Commission (the “SEC”) on March 31, 2023. Liquidity The accompanying condensed consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities in the ordinary course of business. As disclosed on August 14, 2023, in the notes to the condensed consolidated financial statements for the interim period ended June 30, 2023, the Company demonstrated various adverse conditions that raised substantial doubt about the Company’s ability to continue as a going concern. These adverse conditions included insufficient liquidity, a working capital deficit, net operating cash outflows, recurring losses from operations, and the applicability of certain liquidity covenants in connection with the Equipment Notes (as defined in Note 7). Subsequent to August 14, 2023, we obtained funding as discussed in Note 7, Long-Term Debt , amended the Equipment Notes to reduce liquidity covenant requirements and divested the aircraft management business as discussed in Note 4, Acquisitions and Divestitures . During the third quarter of 2023, we also began to realize the impacts of our spend reduction efforts, as a result of the restructuring and operational changes implemented throughout 2023. We have concluded that these events and circumstances, and continued execution of our previously implemented plans, as outlined above, have mitigated the conditions that previously raised substantial doubt about our ability to continue as a going concern. Principles of Consolidation The condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. We consolidate Wheels Up MIP LLC (“MIP LLC”) and record the profits interests held in MIP LLC that Wheels Up does not own as non-controlling interests (see Note 12). All intercompany transactions and balances have been eliminated in consolidation. Use of Estimates Preparing the condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates due to risks and uncertainties. The most significant estimates include, but are not limited to, the useful lives and residual values of purchased aircraft, the fair value of financial assets and liabilities, acquired intangible assets, goodwill, contingent consideration and other assets and liabilities, sales and use tax, the estimated life of member relationships, the determination of the allowance for credit losses, impairment assessments, the determination of the valuation allowance for deferred tax assets and the incremental borrowing rate for leases. Foreign Currency Translation Adjustments Assets and liabilities of foreign subsidiaries, where the functional currency is not the U.S. dollar, have been translated at period-end exchange rates and profit and loss accounts have been translated using weighted-average exchange rates. Adjustments resulting from currency translation have been recorded in the equity section of the condensed consolidated balance sheets and the condensed consolidated statements of other comprehensive loss as a cumulative translation adjustment. Impairment During the second quarter of 2023, we determined that, because of continued negative cash flows and changes in our management and business strategy, there was an indication that the carrying value of the long-lived assets associated with the WUP Legacy reporting unit may not be recoverable. As a result, we performed an undiscounted cash flow analysis of our long-lived assets for potential impairment as of June 1, 2023. Based on the analysis, it was determined that there was no impairment to our long-lived assets. As a result of the aforementioned factors, we determined that there was an indication that it was more likely than not that the fair value of our WUP Legacy reporting unit was less than its carrying amount. We performed an interim quantitative impairment assessment of goodwill as of June 1, 2023. Using a discounted cash flow approach, we calculated the fair value of WUP Legacy based on the present value of estimated future cash flows. The significant underlying inputs used to measure the fair value included forecasted revenue growth rates and margins, weighted average cost of capital, normalized working capital level and projected long-term growth rates. As a result of this assessment, we recognized a goodwill impairment charge of $70.0 million relating to the WUP Legacy reporting unit during the three months ended June 30, 2023. The decline in the fair value of the reporting unit was primarily due to a more material reduction in working capital than expected during the three months ended June 30, 2023, as well as an increase in the discount rate. To facilitate reconciliation of the fair value of our reporting units to our market capitalization as of June 1, 2023, we elected to perform a quantitative impairment assessment of the Air Partner reporting unit as of June 1, 2023, using a combination of the discounted cash flow and guideline public company methods, which did not result in impairment to goodwill. Based on the valuation, the fair value of the Air Partner reporting unit exceeded its carrying value by more than 10%. During the third quarter of 2023, we determined that upon entering into the Term Loan and Revolving Credit Facility (as each is defined below) on September 20, 2023 (see Note 7), and due to associated changes to our ownership and governance structure on that same date (see Note 10), there was an indication that the fair value of the WUP Legacy reporting unit was less than its carrying amount. We performed an interim quantitative impairment assessment of goodwill as of September 20, 2023. Using a discounted cash flow approach, we calculated the fair value of WUP Legacy, based on the present value of estimated future cash flows. The significant underlying inputs used to measure the fair value included forecasted revenue growth rates and margins, weighted average cost of capital, normalized working capital level and projected long-term growth rates. As a result of this assessment, we recognized a goodwill impairment charge of $56.2 million relating to the WUP Legacy reporting unit during the three months ended September 30, 2023. The impairment charge represents the amount by which the carrying value of the reporting unit as of the assessment date exceeded the estimated fair value of the reporting unit as of the assessment date. Since the previous analysis on June 1, 2023, the fair value of the reporting unit increased as a result of the run-off of unprofitable periods in our estimated future cash flows; however, the carrying value of the reporting unit increased in a substantially equivalent amount due to the issuance of the Term Loan (see Note 7) and Initial Shares (as defined in Note 10). To facilitate reconciliation of the fair value of our reporting units to our market capitalization as of September 20, 2023, we elected to perform a quantitative impairment assessment of the Air Partner reporting unit as of September 20, 2023, using a combination of the discounted cash flow and guideline public company methods, which did not result in impairment to goodwill. Based on the valuation, the fair value of the Air Partner reporting unit exceeded its carrying value by more than 20%. Adopted Accounting Pronouncements and Accounting Pronouncements Not Yet Effective There have been no recent accounting pronouncements, changes in accounting pronouncements or recently adopted accounting guidance during the three months ended September 30, 2023 that are of significance or potential significance to us.

REVENUE RECOGNITION

REVENUE RECOGNITION	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
REVENUE RECOGNITION	REVENUE RECOGNITION Disaggregation of Revenue The following table disaggregates revenue by service type and the timing of when these services are provided to the member or customer (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Services transferred at a point in time: Flights, net of discounts and incentives $ 214,645 $ 278,917 $ 681,691 $ 799,351 Aircraft management 51,081 56,558 158,396 172,914 Other 29,720 58,728 89,665 121,695 Services transferred over time: Memberships 20,622 22,409 63,780 67,076 Aircraft management 2,154 2,404 7,035 7,272 Other 1,841 1,340 6,370 3,195 Total $ 320,063 $ 420,356 $ 1,006,937 $ 1,171,503 Revenue in the condensed consolidated statements of operations is presented net of discounts and incentives of $2.7 million and $6.7 million for the three and nine months ended September 30, 2023, respectively, and $2.7 million and $9.4 million for the three and nine months ended September 30, 2022, respectively. Other revenue included within services transferred at a point in time is primarily related to revenue for group charter of $9.8 million, safety and security of $5.9 million, one-time software license revenue of $5.9 million and whole aircraft sales of $2.8 million for the three months ended September 30, 2023, and whole aircraft sales of $35.9 million, group charter of $8.7 million, and safety and security of $5.9 million for the three months ended September 30, 2022. Other revenue included within services transferred at a point in time is primarily related to revenue for group charter of $25.7 million, whole aircraft sales of $18.2 million, safety and security of $17.5 million and software license revenue of $7.0 million for the nine months ended September 30, 2023, and whole aircraft sales of $63.9 million, group charter of $19.8 million, and safety and security of $12.6 million for the nine months ended September 30, 2022. Contract Balances Accounts receivable, net consists of the following (in thousands): September 30, December 31, Gross receivables from members and customers $ 49,705 $ 112,243 Undeposited funds 5,304 10,122 Less: Allowance for credit losses (8,236) (9,982) Accounts receivable, net $ 46,773 $ 112,383 Deferred revenue consists of the following (in thousands): September 30, December 31, Flights - Prepaid Blocks $ 651,458 $ 1,023,985 Memberships - annual dues 35,935 43,970 Memberships - initiation fees 2,804 3,899 Flights - credits 1,773 4,246 Other 399 775 Deferred revenue - total 692,369 1,076,875 Less: Deferred revenue - current (691,214) (1,075,133) Deferred revenue - non-current $ 1,155 $ 1,742 Changes in deferred revenue for the nine months ended September 30, 2023 were as follows (in thousands): Deferred revenue as of December 31, 2022 $ 1,076,875 Amounts deferred during the period 342,923 Revenue recognized from amounts included in the deferred revenue beginning balance (571,211) Revenue from current period sales (156,218) Deferred revenue as of September 30, 2023 $ 692,369 Revenue expected to be recognized in future periods for performance obligations that are unsatisfied, or partially unsatisfied, as of September 30, 2023 were as follows (in thousands): Remainder of 2023 $ 113,830 2024 292,149 2025 143,268 2026 143,122 Total $ 692,369 Costs to Obtain a Contract Capitalized costs related to sales commissions and referral fees were $1.9 million and $6.0 million for the three and nine months ended September 30, 2023, respectively, and $3.3 million and $12.6 million for the three and nine months ended September 30, 2022, respectively.

PROPERTY AND EQUIPMENT

PROPERTY AND EQUIPMENT	9 Months Ended
	Sep. 30, 2023
Property, Plant and Equipment [Abstract]
PROPERTY AND EQUIPMENT	PROPERTY AND EQUIPMENT Property and equipment consist of the following (in thousands): September 30, 2023 December 31, 2022 Aircraft $ 509,984 $ 566,338 Software development costs 80,582 65,303 Leasehold improvements 22,274 11,930 Computer equipment 3,447 3,014 Buildings and improvements 1,424 1,424 Furniture and fixtures 4,311 3,208 Tooling 4,180 3,835 Vehicles 2,351 1,538 628,553 656,590 Less: Accumulated depreciation and amortization (266,500) (262,031) Total $ 362,053 $ 394,559 Depreciation and amortization expense, excluding amortization expense related to software development costs, was $10.0 million and $28.8 million for the three and nine months ended September 30, 2023, respectively, and $10.6 million and $30.3 million for the three and nine months ended September 30, 2022, respectively.

ACQUISITIONS AND DIVESTITURES

ACQUISITIONS AND DIVESTITURES	9 Months Ended
	Sep. 30, 2023
Business Combination and Asset Acquisition [Abstract]
ACQUISITIONS AND DIVESTITURES	ACQUISITIONS AND DIVESTITURES Alante Air Charter, LLC Acquisition On February 3, 2022, we acquired all of the outstanding equity of Alante Air Charter, LLC (“Alante Air”) for a total purchase price of $15.5 million in cash. Alante Air added 12 Light jets to our controlled fleet and expanded our presence in the Western U.S. Acquisition-related costs for Alante Air of $0.5 million were included in General and administrative expense in the condensed consolidated statements of operations for the three months ended September 30, 2022. The acquisition of Alante Air was determined to be a business combination. We have allocated the purchase price for Alante Air to its individual assets and liabilities assumed. As of the date of acquisition, the total purchase price allocated to the Alante Air assets acquired and liabilities assumed according to their estimated fair values were as follows (in thousands): Current assets $ 4,452 Goodwill 13,069 Other assets 22,048 Total assets acquired 39,569 Total liabilities assumed (24,101) Net assets acquired $ 15,468 Current assets of Alante Air included $3.0 million of cash and $1.4 million of accounts receivable, including $15 thousand owed from Wheels Up that was eliminated in consolidation upon acquisition. Goodwill represents the excess of the purchase price over the fair values of the acquired net tangible assets. The allocated value of goodwill primarily relates to anticipated synergies and economies of scale by combining the use of Alante Air’s aircraft and existing business processes with our other acquisitions. The acquired goodwill is deductible for tax purposes. Air Partner plc Acquisition On April 1, 2022, we acquired all of the outstanding equity of Air Partner plc (“Air Partner”) for a total purchase price of $108.2 million in cash. Air Partner is a United Kingdom-based international aviation services group that provides us with operations in 18 locations across four continents. Acquisition-related costs for Air Partner included in General and administrative expense in the condensed consolidated statements of operations for the three months ended September 30, 2022 were immaterial. The acquisition of Air Partner was determined to be a business combination. As of the date of acquisition, the total purchase price allocated to the Air Partner assets acquired and liabilities assumed according to their estimated fair values were as follows (in thousands): Current assets $ 49,617 Property and equipment, net 2,012 Operating lease right-of-use assets 2,780 Goodwill 83,910 Intangible assets 20,921 Restricted cash 27,507 Other assets 1,686 Total assets acquired 188,433 Total liabilities assumed (80,239) Net assets acquired $ 108,194 Current assets of Air Partner included $18.0 million of cash and $16.6 million of accounts receivable. The allocated value of goodwill primarily relates to anticipated synergies and economies of scale by combining the use of Air Partner’s existing business processes with our platform to expand on an international basis. The acquired goodwill is not deductible for tax purposes. The amounts allocated to acquired intangible assets and their associated weighted-average amortization periods, which were determined based on the period the assets are expected to contribute directly or indirectly to our cash flows, consisted of the following: Amount Weighted-Average Amortization Period Customer relationships $ 16,521 5.7 Backlog 1,458 1.5 Trade name 1,931 1.9 Developed technology 1,011 5.8 Total acquired intangible assets $ 20,921 5.1 The intangible asset fair value measurements are primarily based on significant inputs that are not observable in the market which represent a Level 3 measurement (see Note 8). The valuation method used for the Air Partner intangible assets was the income approach. Unaudited Pro Forma Summary of Operations The accompanying unaudited pro forma summary represents the consolidated results of operations as if the 2022 acquisitions of Alante Air and Air Partner had been completed as of January 1, 2022. The unaudited pro forma financial results for 2022 reflect the results for the three and nine months ended September 30, 2022, as well as the effects of pro forma adjustments for the transactions in 2022. The unaudited pro forma financial information includes the accounting effects of the acquisitions, including adjustments to the amortization of intangible assets and professional fees associated with the transactions. The pro forma results were based on estimates and assumptions, which we believe are reasonable but remain subject to adjustment. The unaudited pro forma summary does not necessarily reflect the actual results that would have been achieved had the companies been combined during the periods presented, nor is it necessarily indicative of future consolidated results (in thousands, except per share data). Nine Months Ended September 30, 2022 Net revenue $ 1,209,321 Net loss $ (266,628) Net loss attributable to Wheels Up Experience Inc. $ (266,628) Net loss per share (1) $ (10.98) (1) Adjusted for the impact of the Reverse Stock Split Divestiture of Aircraft Management Business On September 30, 2023, (the “Closing Date”), Wheels Up Partners Holdings LLC, our direct subsidiary (“WUP”), pursuant to an equity purchase agreement (the “Purchase Agreement”) with Executive AirShare LLC, completed the sale of 100% of the issued and outstanding equity interests of Circadian Aviation LLC, our indirect subsidiary (“Circadian”). The Closing Date fair value of the aggregate consideration transferred was $19.1 million and the Company recognized a loss on the sale of $3.0 million. The $19.1 million was comprised of $13.2 million of cash received on the Closing Date, contingent consideration with a fair value of $4.8 million, an escrow receivable of $0.6 million and a non-contingent consideration receivable of $0.5 million. The fair value of the contingent consideration was deemed to be the approximate contract value as of the Closing Date. Circadian was released from all guarantor obligations with respect to the Equipment Notes (as defined below) on the Closing Date pursuant to certain debt release letters entered into concurrently with the Purchase Agreement.

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS	9 Months Ended
	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND INTANGIBLE ASSETS	GOODWILL AND INTANGIBLE ASSETS Goodwill The following table presents goodwill carrying values and the change in balance, by reporting unit, during the nine months ended September 30, 2023 (in thousands): WUP Legacy Air Partner Total Balance as of December 31, 2022 (1) $ 270,467 $ 77,651 $ 348,118 Acquisitions (2) — 350 350 Impairment (3) (126,200) — (126,200) Divestitures (4) (8,169) — (8,169) Foreign currency translation adjustment — 708 708 Balance as of September 30, 2023 $ 136,098 $ 78,710 $ 214,808 (1) Net of accumulated impairment losses of $180 million, all of which was recognized on the goodwill attributable to the WUP Legacy reporting unit during the year ended December 31, 2022. (2) Reflects the current period impact of measurement period adjustments (See Note 4) (3) Impairment charge recognized during the second and third quarters of 2023 as a result of an interim quantitative assessments of goodwill as of June 1, 2023 and September 20, 2023, respectively (See Note 1) (4) Reflects the amount of goodwill allocated to the divestiture of the aircraft management business (See Note 4). Intangible Assets The gross carrying value, accumulated amortization and net carrying value of intangible assets consisted of the following (in thousands): September 30, 2023 Gross Carrying Accumulated Amortization Net Carrying Status $ 80,000 $ 29,644 $ 50,356 Customer relationships 89,121 32,226 56,895 Trade name 13,161 6,321 6,840 Developed technology 20,556 11,580 8,976 Leasehold interest - favorable 600 96 504 Backlog 1,458 1,313 145 Foreign currency translation adjustment (1,480) (547) (933) Total $ 203,626 $ 80,843 $ 122,783 December 31, 2022 Gross Carrying Accumulated Amortization Net Carrying Status $ 80,000 $ 23,644 $ 56,356 Customer relationships 91,121 24,613 66,508 Non-competition agreement 210 210 — Trade name 16,161 8,294 7,867 Developed technology 20,556 9,332 11,224 Leasehold interest - favorable 600 80 520 Backlog 1,458 880 578 Foreign currency translation adjustment (1,662) (374) (1,288) Total $ 208,444 $ 66,679 $ 141,765 Amortization expense of intangible assets was $6.0 million and $17.8 million for the three and nine months ended September 30, 2023, respectively, and $6.4 million and $18.1 million for the three and nine months ended September 30, 2022, respectively. Intangible Liabilities Associated with our acquisition of Delta Private Jets on January 17, 2020, we recognized intangible liabilities for the fair value of complimentary Connect Memberships provided to existing Delta SkyMiles 360 customers as of the acquisition date, as required under the Commercial Cooperation Agreement (as amended, the “CCA”) with Delta. The gross carrying value, accumulated amortization and net carrying value of intangible liabilities consisted of the following (in thousands): September 30, 2023 Gross Carrying Accumulated Amortization Net Carrying Intangible liabilities $ 20,000 $ 7,417 $ 12,583 December 31, 2022 Gross Carrying Accumulated Amortization Net Carrying Intangible liabilities $ 20,000 $ 5,917 $ 14,083 Amortization of intangible liabilities, which reduces amortization expense, was $0.5 million for each of the three months ended September 30, 2023, and 2022, and $1.5 million for each of the nine months ended September 30, 2023, and 2022. Future amortization expense of intangible assets and intangible liabilities held as of September 30, 2023, were as follows (in thousands): Intangible Assets Intangible Liabilities Remainder of 2023 $ 5,865 $ 500 2024 22,759 2,000 2025 22,345 2,000 2026 21,486 2,000 2027 17,018 2,000 2028 and Thereafter 33,310 4,083 Total $ 122,783 $ 12,583

CASH EQUIVALENTS AND RESTRICTED

CASH EQUIVALENTS AND RESTRICTED CASH	9 Months Ended
	Sep. 30, 2023
Cash and Cash Equivalents [Abstract]
CASH EQUIVALENTS AND RESTRICTED CASH	CASH EQUIVALENTS AND RESTRICTED CASH Cash Equivalents As of September 30, 2023 and December 31, 2022, cash equivalents on the condensed consolidated balance sheets were $0.1 million and $430.3 million, respectively, and generally consisted of investments in money market funds, savings and time deposits. Restricted Cash As of September 30, 2023 and December 31, 2022, restricted cash, which is presented within Other non-current assets on the condensed consolidated balance sheets, included $6.2 million held by financial institutions to establish standby letters of credit required by the lessors of certain corporate office space that we leased as of such dates and $3.4 million held by financial institutions to collateralize against our credit card programs. The standby letters of credit expire on December 31, 2033 and June 30, 2034. The balances as of September 30, 2023 and December 31, 2022 also included $19.7 million and $26.3 million, respectively, related to funds held but unavailable for immediate use due to contractual restrictions. A reconciliation of cash and cash equivalents and restricted cash from the condensed consolidated balance sheets to the condensed consolidated statements of cash flows is as follows (in thousands): September 30, 2023 December 31, 2022 Cash and cash equivalents $ 244,847 $ 585,881 Restricted cash 29,315 34,272 Total $ 274,162 $ 620,153

LONG-TERM DEBT

LONG-TERM DEBT	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
LONG-TERM DEBT	LONG-TERM DEBT The following table presents the components of long-term debt on our condensed consolidated balance sheets (in thousands): Weighted Average Interest Rate September 30, 2023 December 31, 2022 Equipment Notes 12.0 % $ 232,610 $ 270,000 Term Loan 10.0 % 350,972 — Total debt 583,582 270,000 Less: Total unamortized deferred financing costs and debt discount 322,926 16,760 Less: Current maturities of long-term debt 25,227 27,006 Long-term debt $ 235,429 $ 226,234 Maturities of our principal debt payments for the next five years are as follows (in thousands): Maturities Remainder of 2023 $ 6,307 2024 25,227 2025 43,916 2026 38,907 2027 33,258 2028 and Thereafter 435,967 Total $ 583,582 2022-1 Equipment Notes On October 14, 2022, WUP LLC issued $270.0 million aggregate principal amount of 12% fixed rate equipment notes (collectively, the “Equipment Notes”) using an EETC (enhanced equipment trust certificate) loan structure. The Equipment Notes were issued for net proceeds (before transaction-related expense) of $259.2 million. The final expected distribution date of the Equipment Notes varies from July 15, 2025 to October 15, 2029, unless redeemed earlier by WUP LLC. The Equipment Notes bear interest at the rate of 12% per annum with annual amortization of the principal amount equal to 10% per annum and balloon payments due at each maturity date. As of September 30, 2023, the Equipment Notes were secured by first-priority liens on 127 of the Company’s owned aircraft fleet and by liens on certain intellectual property assets of the Company and certain of its subsidiaries (collectively, the “Equipment Note Collateral”). The Equipment Notes were sold pursuant to a Note Purchase Agreement, dated as of October 14, 2022 (the “Note Purchase Agreement”), and issued under separate Trust Indentures and Mortgages, dated as of October 14, 2022 (each, an “Indenture” and collectively, the “Indentures”). On September 20, 2023, the Company, WUP LLC, certain other subsidiaries of the Company that guaranteed and/or granted collateral to secure WUP LLC’s obligations under the Equipment Notes, Wilmington Trust National Association (“WTNA”), and the Lenders (as defined below) entered into the Omnibus Amendment No. 1 (the “Omnibus Amendment”). The Omnibus Amendment provides for, among other things, (i) reducing the minimum liquidity covenant under the guarantee agreement related to the Equipment Notes (the “Guarantee”) with respect to the Company and its subsidiaries from $125.0 million as of the end of each fiscal quarter to $75.0 million on any date, (ii) permitting the execution of the Credit Agreement (as defined below) and (iii) reflecting the consent of the Equipment Note lenders that will allow the Company to effect a sale of certain guarantors under the Guarantee. The Note Purchase Agreement, the Indentures and the Guarantee, as each was amended by the Omnibus Amendment, contain certain covenants, including a liquidity covenant that requires the Company to maintain minimum aggregate available cash and Cash Equivalents (as defined in the Note Purchase Agreement), including certain amounts held in deposit for the benefit of the lenders, of $75.0 million on any date, a covenant that limits the maximum loan to appraised value ratio of all aircraft financed, subject to certain cure rights of the Company, and restrictive covenants that provide limitations under certain circumstances on, among other things: (i) making certain acquisitions, mergers or disposals of its assets; (ii) making certain investments or entering into certain transactions with affiliates; (iii) prepaying, redeeming or repurchasing the Equipment Notes, subject to certain exceptions; and (iv) paying dividends and making certain other specified restricted payments. Each Indenture contains customary events of default for Equipment Notes of this type, including cross-default provisions among the Equipment Notes and the Term Loan and Revolving Credit Facility (as each term is defined below). WUP LLC’s obligations under the Equipment Notes are guaranteed by the Company and certain of its subsidiaries. WUP LLC is also obligated to cause additional subsidiaries and affiliates of WUP LLC to become guarantors under certain circumstances. The Equipment Notes issued with respect to each aircraft are cross-collateralized by the other aircraft for which Equipment Notes were issued under the Indentures. The maturity of the Equipment Notes may be accelerated upon the occurrence of certain events of default under the Note Purchase Agreement and each Indenture and the related guarantees. As of September 30, 2023, we were in compliance with the covenants under the Note Purchase Agreement, each Indenture and the related guarantees. We recognized $4.9 million in General and administrative expense in the condensed consolidated statement of operations associated with executing the Omnibus Amendment. Interest and principal payments on the Equipment Notes are payable quarterly on each January 15, April 15, July 15 and October 15, which began on January 15, 2023. During the nine months ended September 30, 2023, the Company redeemed in-full the Equipment Notes for seven aircraft, which reduced the aggregate principal amount outstanding under the Equipment Notes by $17.4 million. As of September 30, 2023, the carrying value of the 127 aircraft that are subject to first-priority liens under the Equipment Notes was $300.2 million. Amortization expense for debt discounts and deferred financing costs of $0.3 million and $2.7 million was recorded in interest expense in the condensed consolidated statement of operations for the three and nine months ended September 30, 2023, respectively. Delta Promissory Note On August 8, 2023, the Company entered into a Secured Promissory Note (the “Note”) with Delta, as payee, which was subsequently amended pursuant to the First Amendment thereto, dated August 15, 2023, the Second Amendment thereto, dated August 21, 2023, the Third Amendment thereto, dated September 6, 2023, and the Fourth Amendment thereto, dated September 14, 2023 (collectively, the “Amendments” and, collectively with the Note, the “Amended Note”), pursuant to which Delta provided $70.0 million aggregate principal amount of short-term funding to the Company at an interest rate of 10% per annum, which was payable in kind and capitalized to the outstanding principal amount of the Amended Note on a quarterly basis and a maturity date of February 4, 2024. The Amended Note was secured by a first-priority lien on unencumbered assets of the Company and its direct and indirect wholly-owned U.S. subsidiaries, including unencumbered aircraft of WUP LLC. The Amended Note was guaranteed by the Company’s wholly-owned U.S. subsidiaries. On September 20, 2023, the Company repaid all amounts due and owed under the Amended Note using a portion of the proceeds from the Term Loan (as defined below) and entered into a Letter Agreement, dated as of September 20, 2023 with Delta, which terminated the Amended Note and released all liens and guarantees thereunder in connection with such repayment. The repayment of all amounts due and owed under the Amended Note was accounted for as a debt extinguishment, and no gain or loss was recognized. Term Loan and Revolving Credit Facility On September 20, 2023 (the “Credit Agreement Closing Date”), the Company entered into a Credit Agreement (the “Credit Agreement”), by and among the Company, as borrower, certain subsidiaries of the Company as guarantors (collectively with the Company, the “Loan Parties”), Delta, CK Wheels LLC (“CK Wheels”), and Cox Investment Holdings, Inc. (“CIH” and collectively with Delta and CK Wheels, the “Lenders”), and U.S. Bank Trust Company, N.A., as administrative agent for the Lenders and as collateral agent for the secured parties, pursuant to which (i) the Lenders provided a term loan facility (the “Term Loan”) in the aggregate original principal amount of $350.0 million and (ii) Delta provided commitments for a revolving loan facility (the “Revolving Credit Facility”) in the aggregate original principal amount of $100.0 million. On September 20, 2023, the Company issued the Term Loan of $350.0 million to the Lenders for net proceeds (before transaction-related expense) of $343.0 million. Pursuant to the Credit Agreement, the Company, with the consent of Delta and CK Wheels, may request the establishment of new term loan commitments (each, an “Incremental Term Loan”) after the Credit Agreement Closing Date in an aggregate principal amount up to $50.0 million, subject to certain limitations and requirements. Any additional lender providing an Incremental Term Loan after the Credit Agreement Closing Date in accordance with the Credit Agreement will join the Credit Agreement. The scheduled maturity date for the Term Loan is September 20, 2028, and the scheduled maturity date for the Revolving Credit Facility is the earlier of September 20, 2028 and the first date after September 20, 2025 on which all amounts owed with respect to borrowings under the Revolving Credit Facility have been repaid (in each case, as applicable, the “Maturity Date”), subject in each case to earlier termination upon acceleration or termination of any obligations upon the occurrence and continuation of an event of default. Interest on the Term Loan and any borrowings under the Revolving Credit Facility (each, a “Loan” and collectively, the “Loans”) accrues at a rate of 10% per annum on the unpaid principal balance of the Loans then outstanding. Accrued interest on each Loan is payable in kind as compounded interest and capitalized to the principal amount of the applicable Loan on the last day of each of March, June, September and December, and the Maturity Date. If in the future the Company or its subsidiaries either redeem in full the outstanding Equipment Notes or commence payoff at maturity thereof, the Company may elect to make interest payments (or some portion thereof) on any Loans then outstanding in cash. If the Company does not consummate the Deferred Issuance (as defined in Note 10 below) by January 18, 2024, the interest rate on the Term Loan will be increased to 20% per annum until such time that such Deferred Issuance is consummated. Also, upon the occurrence and during the continuance of an event of default under the Credit Agreement, (y) interest will accrue on the unpaid principal balance of the Loans at the rate then applicable to such Loans plus 2% and (z) interest will accrue on all other outstanding liabilities, interest, expenses, fees and other sums under the Credit Agreement, at a rate equal to the Alternate Base Rate (as defined in the Credit Agreement) plus 2% per annum. The Credit Agreement also contains certain covenants and events of default, in each case customary for transactions of this type. The obligations under the Credit Agreement are secured by a first-priority lien on unencumbered assets of the Loan Parties (excluding certain accounts, including any segregated account exclusively holding customer deposits, and other assets specified in the Credit Agreement), as well as a junior lien on the Equipment Note Collateral. The Credit Agreement is initially guaranteed by all U.S. and certain non-U.S. direct and indirect subsidiaries of the Company. In the future, the Company may be required to add any new or after-acquired subsidiaries of the Company that meet certain criteria as guarantors. In connection with the transactions contemplated by the Credit Agreement, the Company entered into an Investment and Investor Rights Agreement on September 20, 2023 (the “Investor Rights Agreement”), by and among the Company and the Lenders. Pursuant to the Investor Rights Agreement, the Company issued the Lenders 141,313,671 shares in the aggregate (the “Initial Shares”) of Common Stock in a private placement that closed after the end of the trading day on September 20, 2023, which represented approximately 80% of the Company’s issued and outstanding shares of Common Stock on a fully diluted basis as of September 15, 2023 (the “Initial Issuance”). The Initial Shares were issued such that each Lender received a pro rata portion of the Initial Shares equal to the proportion of its participation in the Term Loan as of the Credit Agreement Closing Date. Additionally, the Company agreed to issue an additional 529,926,270 shares in the aggregate (the “Deferred Shares” and, together with the Initial Shares, the “Investor Shares”) of Common Stock, which together with the Initial Shares will represent approximately 95% of the Company’s issued and outstanding shares of Common Stock on a fully diluted basis as of September 15, 2023 (the “Deferred Issuance”). The Deferred Issuance is contingent upon, and the Deferred Shares are expected to be issued to the Lenders (and any additional lender permitted pursuant to the Credit Agreement) after, the receipt of stockholder approval of an amendment to the Company’s Certificate of Incorporation to increase the number of shares of Common Stock authorized for issuance thereunder (the “Authorized Shares Amendment”) at a special meeting of the Company’s stockholders expected to be held on November 9, 2023 (the “Special Meeting”). The Investor Shares will be issued in a private placement such that upon completion of the Deferred Issuance, if at all, each Lender (or any additional lender permitted pursuant to the Credit Agreement) will have been issued a pro rata portion of the Investor Shares equal to the proportion of its participation in the Term Loan, together with any additional term loan issued prior to or concurrently with the Deferred Issuance. The Investor Rights Agreement also contains certain other terms and conditions related to the Lenders’ ownership of Common Stock, including, among other things, that the Lenders have the right to designate certain members of the Board depending on the level of Common Stock ownership and certain transfer restrictions and liquidity rights. In accordance with ASC 470, Debt , the value of the Term Loan, Initial Issuance, and Deferred Issuance was allocated using a relative fair value allocation. We evaluated features of the three instruments in accordance with ASC 480, Distinguishing Liabilities from Equity , and ASC 815, Derivatives and Hedging . The Company determined that the Term Loan, Initial Issuance and Deferred Issuance did not contain any features that would qualify as a derivative or embedded derivative and require bifurcation. In addition, the Company determined the Initial Issuance and Deferred Issuance should be classified as equity. The allocation on a relative fair value basis resulted in gross amounts recorded of $44.9 million for the Term Loan, $64.2 million for the Initial Issuance and $240.9 million for the Deferred Issuance. The fair value of debt was principally based on inputs such as estimated credit risk, recently completed market transactions and estimates based on interest rates, maturities, credit risk and underlying collateral. These inputs are primarily classified as Level 3 within the ASC 820 fair value hierarchy. The fair value of the Initial Issuance and Deferred Issuance were based on the quoted market prices of Common Stock, which represent Level 1 within the ASC 820 fair value hierarchy given these issuances were announced and known by the public. Issuance costs of $26.6 million were incurred in connection with the Credit Agreement and Investor Rights Agreement. The deferred issuance costs were allocated on a relative fair value basis, resulting in an allocation of $3.4 million for the Term Loan, $4.9 million for the Initial Issuance, and $18.3 million for the Deferred Issuance.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability, an exit price, in an orderly transaction between unaffiliated willing market participants on the measurement date under current market conditions. Assets and liabilities recorded at fair value are measured and classified in accordance with a three-tier fair value hierarchy based on the observability of the inputs available and activity in the markets used to measure fair value. A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. Level 1 - Quoted prices, unadjusted, in active markets for identical assets or liabilities that can be accessed at the measurement date. Level 2 - Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 3 - Unobservable inputs developed using our own estimates and assumptions, which reflect those that market participants would use in pricing the asset or liability. Financial instruments that are measured at fair value on a recurring basis and their corresponding placement in the fair value hierarchy consisted of the following (in thousands): September 30, 2023 Level 1 Level 2 Level 3 Fair Value Assets: Money market funds $ 89 $ — $ — 89 Total assets $ 89 $ — $ — $ 89 Liabilities: Warrant liability - Public Warrants $ 42 $ — $ — $ 42 Warrant liability - Private Warrants — 24 — 24 Equipment Notes — — 269,801 269,801 Term loan $ — $ — 268,400 $ 268,400 Total liabilities $ 42 $ 24 $ 538,201 $ 538,267 December 31, 2022 Level 1 Level 2 Level 3 Fair Value Assets: Money market funds $ 230,626 $ — $ — $ 230,626 Treasury bills 199,700 — — 199,700 Total assets $ 430,326 $ — $ — $ 430,326 Liabilities: Warrant liability - Public Warrants $ 479 $ — $ — $ 479 Warrant liability - Private Warrants — 272 — 272 Equipment Notes — 270,000 — 270,000 Total liabilities $ 479 $ 270,272 $ — $ 270,751 The carrying amount of cash equivalents approximates fair value and is classified within Level 1, because we determined the fair value through quoted market prices. The estimated fair value of the Equipment Notes is categorized as a Level 3 valuation. We considered the appraised value of aircraft subject to first-priority liens under the Equipment Notes, as sourced during the third quarter of 2023 and as required under the Equipment Notes, to determine the fair value of the Equipment Notes as of September 30, 2023. The estimated fair value of the Term Loan is categorized as a Level 3 valuation. The estimated fair value as of the issuance date was principally based on inputs such as estimated credit risk, recently completed transactions and estimates based on interest rates, maturities, credit risk and underlying collateral. We considered the relatively short time period between the issuance of the Term Loan and the measurement date of September 30, 2023, in order to determine the fair value of the Term Loan as of September 30, 2023. The Warrants (as defined below) were accounted for as a liability in accordance with Accounting Standards Codification 815-40 (see Note 12). The warrant liability was measured at fair value upon assumption and on a recurring basis, with changes in fair value presented in the condensed consolidated statements of operations. As of each of September 30, 2023 and December 31, 2022, we used Level 1 inputs for the Public Warrants (as defined below) and Level 2 inputs for the Private Warrants (as defined below). We valued the Private Warrants by applying the valuation technique of a Monte Carlo simulation model to reflect the redemption conditions. The Private Warrants are substantially similar to the Public Warrants, but are not directly traded or quoted on an active trading market. See Note 12 for additional information about the Warrants. The following table presents the changes in the fair value of the warrant liability (in thousands): Public Warrants Private Warrants Total Warrant Liability Fair value as of December 31, 2022 $ 479 $ 272 $ 751 Change in fair value of warrant liability (437) (248) (685) Fair value as of September 30, 2023 $ 42 $ 24 $ 66

LEASES

LEASES	9 Months Ended
	Sep. 30, 2023
Leases [Abstract]
LEASES	LEASES Leases primarily pertain to certain controlled aircraft and our corporate headquarters and operational facilities, including aircraft hangars, which are all accounted for as operating leases. We sublease an aircraft hangar at Cincinnati/Northern Kentucky International Airport from Delta. Certain of these operating leases have renewal options to further extend for additional time periods at our discretion. Our leases do not contain residual value guarantees, covenants or other associated restrictions. We have certain variable lease agreements with aircraft owners that contain payment terms based on an hourly lease rate multiplied by the number of flight hours during a month. Variable lease payments are not included in the right-of-use asset and lease liability balances but rather are expensed as incurred. The components of net lease cost were as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Operating lease costs $ 9,313 $ 9,789 $ 30,648 $ 28,614 Short-term lease costs 2,039 8,086 6,676 22,600 Variable lease costs 10,519 3,563 25,018 12,516 Total lease costs $ 21,871 $ 21,438 $ 62,342 $ 63,730 Lease costs related to leased aircraft and operational facilities are included in cost of revenue in the condensed consolidated statements of operations. Lease costs related to our leased corporate headquarters and other office space, including expenses for non-lease components, are included in General and administrative expense in the condensed consolidated statements of operations. Sublease income is presented in General and administrative expense in the condensed consolidated statements of operations. Sublease income was not material for any of the three and nine month periods ended September 30, 2023 and 2022. Supplemental cash flow information related to leases were as follows (in thousands): Nine Months Ended September 30, 2023 2022 Cash paid for amounts included in the measurement of operating lease liabilities: Operating cash flows paid for operating leases $ 28,318 $ 28,865 Right-of-use assets obtained in exchange for operating lease obligations $ 5,742 $ 46,916 Supplemental balance sheet information related to leases were as follows: September 30, 2023 December 31, 2022 Weighted-average remaining lease term (in years): Operating leases 6.7 5.9 Weighted-average discount rate: Operating leases 9.1 % 9.0 % Maturities of lease liabilities, as of September 30, 2023, were as follows (in thousands): Year ending December 31, Operating Leases 2023 (remaining) $ 8,159 2024 28,522 2025 16,993 2026 9,826 2027 7,520 2028 and Thereafter 43,090 Total lease payments 114,110 Less: Imputed interest (31,561) Total lease obligations $ 82,549

STOCKHOLDER_S EQUITY AND EQUITY

STOCKHOLDER’S EQUITY AND EQUITY-BASED COMPENSATION	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
STOCKHOLDER’S EQUITY AND EQUITY-BASED COMPENSATION	STOCKHOLDERS’ EQUITY AND EQUITY-BASED COMPENSATION Stockholders’ Equity Authorized Shares Pursuant to the Wheels Up Experience Inc. certificate of incorporation, as amended, and after giving effect to the Authorized Share Reduction that became effective on June 7, 2023, we are authorized to issue 250,000,000 shares of Common Stock, and 25,000,000 shares of preferred stock, $0.0001 par value per share. Holders of Common Stock are entitled to one vote per share; provided, that (i) CK Wheels LLC may not vote more than 19.9% of the Company’s issued and outstanding Common Stock as a result of restrictions on voting imposed under applicable regulatory provisions and (ii) by agreement with Delta, any shares owned by Delta above 29.9% will be neutral shares with respect to voting rights, voted in proportion to all other votes cast (“for”, “against” or “abstain”) at a meeting of stockholders other than by Delta. Reverse Stock Split Following approval by the Company’s stockholders at the Company’s 2023 Annual Meeting of Stockholders held on May 31, 2023, the Board of Directors of the Company (the “Board”) approved the Reverse Stock Split of Wheels Up’s outstanding shares of Common Stock, at a reverse stock split ratio of 1-for-10 and contemporaneously with the Reverse Stock Split, the Authorized Share Reduction, which provided for a proportionate reduction in the number of authorized shares of Common Stock from 2.5 billion shares of Common Stock to 250 million shares, each of which became effective immediately after the close of trading on the NYSE on June 7, 2023. The Company’s total stockholders’ equity, in the aggregate, did not change as a result of the Reverse Stock Split and Authorized Share Reduction. In addition, the par value for the Company’s Common Stock remained unchanged. Holders of Common Stock who would otherwise have held fractional shares because the number of shares of Common Stock they held before the Reverse Stock Split was not evenly divisible by the reverse stock split ratio received cash (without interest, and subject to any required tax withholding applicable to a holder) in lieu of issuance of such fractional shares. As a result of the Reverse Stock Split, equitable adjustments corresponding to the reverse stock split ratio were made to the number of shares of Common Stock underlying Wheels Up’s outstanding equity awards and the number of shares issuable under Wheels Up’s equity incentive plans, as well as any exercise prices, hurdle amounts or market-based vesting conditions of such equity awards, as applicable. In addition, equitable adjustments corresponding to the reverse stock split ratio of 1-for-10 were made to the Warrants (as defined below), resulting in each Warrant becoming exercisable for 1/10th of one share of Common Stock at an exercise price of $115.00 per whole share of Common Stock and the stated redemption prices per Warrant being proportionately reduced (see Note 12). Initial Issuance & Deferred Issuance In connection with the transactions contemplated by the Credit Agreement, the Company entered into the Investor Rights Agreement on September 20, 2023. Pursuant to the Investor Rights Agreement, the Company issued the Lenders 141,313,671 Initial Shares in a private placement that closed after the end of the trading day on the Credit Agreement Closing Date, which represented approximately 80% of the Company’s issued and outstanding shares of Common Stock on a fully diluted basis. The Initial Shares were issued such that each Lender received a pro rata portion of the Initial Shares equal to the proportion of its participation in the Term Loan as of the Credit Agreement Closing Date. The amount recorded for the Initial Issuance was determined using the relative fair value basis, which resulted in allocated gross proceeds of $64.2 million for the Initial Issuance. Issuance costs of $4.9 million were recorded as a reduction to Additional paid-in capital. Additionally, the Company agreed to issue an additional 529,926,270 Deferred Shares. The Deferred Issuance is contingent upon, and the Deferred Shares are expected to be issued to the Lenders (and any additional lender permitted pursuant to the Credit Agreement) after, the receipt of stockholder approval of the Authorized Shares Amendment at the Special Meeting. The Investor Shares will be issued in a private placement such that upon completion of the Deferred Issuance, if at all, each Lender (and any additional lender permitted pursuant to the Credit Agreement) will have been issued a pro rata portion of the Investor Shares equal to the proportion of its participation in the Term Loan, together with any additional term loan issued prior to or concurrently with the Deferred Issuance. The Company recorded the Deferred Issuance as a forward contract for Common Stock within Additional paid-in capital on the balance sheet. The amount recorded for the Deferred Issuance was determined using the relative fair value basis, which resulted in allocated gross proceeds of $240.9 million for the Deferred Issuance. Issuance costs of $18.3 million were recorded as a reduction to Additional paid-in capital. Equity-Based Compensation As of September 30, 2023, we have nine equity-based compensation plans that were approved by the board of directors of WUP LLC (collectively the “WUP Management Incentive Plan”) prior to the Business Combination (as defined below), as well as the Wheels Up Partners Holdings LLC Option Plan (the “WUP Option Plan”). Following the consummation of the Business Combination (as defined below), no new grants can be made under the WUP Management Incentive Plan or WUP Option Plan. In connection with the Business Combination (as defined below), the Board and stockholders of Wheels Up adopted the Wheels Up Experience Inc. 2021 Long-Term Incentive Plan (the “Original 2021 LTIP”), for employees, consultants and other qualified persons. Following approval by the Board, at the Annual Meeting, the Company’s stockholders approved the Amended and Restated Wheels Up Experience Inc. 2021 Long-Term Incentive Plan (the “Amended and Restated 2021 LTIP”) to increase the aggregate number of shares of Common Stock available for awards made thereunder by 24,150,000 shares (2,415,000 shares after giving effect to the Reverse Stock Split) and amend certain other plan provisions. On June 30, 2022, the Board adopted the Wheels Up Experience Inc. 2022 Inducement Grant Plan (the “2022 Inducement Plan”) to be used for a one-time employment inducement grant, pursuant to NYSE Rule 303A.08, for Todd Smith, in connection with his appointment to Chief Financial Officer. The maximum number of awards that could be granted under the 2022 Inducement Plan were 2,051,282 shares of Common Stock (205,128 shares of Common Stock after giving effect to the Reverse Stock Split), which were all granted in the form of restricted stock units (“RSUs”) to Mr. Smith on July 1, 2022. Restricted stock unit awards granted under the 2022 Inducement Grant Plan contain generally the same terms as other awards granted under the Original 2021 LTIP during the fiscal year ended December 31, 2022. WUP Management Incentive Plan As of September 30, 2023, an aggregate of 3.1 million WUP profits interests have been authorized and issued under the WUP Management Incentive Plan. Vested WUP profits interests are eligible to be exchanged into shares of Common Stock. Amounts of WUP profits interests reported in the tables below represent the maximum number of WUP profits interests outstanding or that could be realized upon vesting and immediately exchanged for the maximum number of shares of Common Stock. The actual number of shares of Common Stock received upon exchange of such WUP profits interests will depend on the trading price per share of Common Stock at the time of such exchange. The following table summarizes the WUP profits interests activity under the WUP Management Incentive Plan as of September 30, 2023: Number of WUP Weighted-Average Grant (in thousands) Outstanding WUP profits interests as of January 1, 2023 2,881 $ 4.16 Granted — — Exchanged — — Expired/forfeited — — Outstanding WUP profits interests as of September 30, 2023 2,881 $ 4.16 The weighted-average remaining contractual term as of September 30, 2023, for WUP profits interests outstanding was approximately 7.8 years. The following table summarizes the status of non-vested WUP profits interests as of September 30, 2023: Number of WUP Weighted-Average Grant (in thousands) Non-vested WUP profits interests as of January 1, 2023 170 $ 4.19 Granted — — Vested (170) 4.19 Forfeited — — Non-vested WUP profits interests as of September 30, 2023 — $ — WUP Option Plan As of September 30, 2023, the number of WUP stock options authorized and issued in the aggregate under the WUP Option Plan was 1.8 million. Each outstanding stock option is exercisable for one share of Common Stock. The following table summarizes the activity under the WUP Option Plan as of September 30, 2023: Number of WUP Weighted- Weighted-Average Grant (in thousands) Outstanding WUP stock options as of January 1, 2023 1,280 $ 75.10 $ 12.02 Granted — — — Exercised — — — Forfeited (78) 71.63 7.34 Expired (10) 72.71 6.74 Outstanding WUP stock options as of September 30, 2023 1,192 $ 75.35 $ 12.38 Exercisable WUP stock options as of September 30, 2023 1,192 $ 75.35 $ 12.38 The aggregate intrinsic value as of September 30, 2023, for WUP stock options that were outstanding and exercisable was nil . The weighted-average remaining contractual term as of September 30, 2023, for WUP stock options that were outstanding and exercisable was approximately 5.8 years. The following table summarizes the status of non-vested WUP stock options as of September 30, 2023: Number of WUP Stock Options Weighted-Average Grant (in thousands) Non-vested WUP stock options as of January 1, 2023 104 $ 19.95 Granted — — Vested (102) 20.03 Expired — — Forfeited (2) 16.01 Non-vested WUP stock options as of September 30, 2023 — $ — Amended and Restated 2021 LTIP As of September 30, 2023, an aggregate of 5.2 million shares were authorized for issuance under the Amended and Restated 2021 LTIP. Restricted Stock Units The following table summarizes the activity under the Amended and Restated 2021 LTIP related to RSU s as of September 30, 2023: Number of RSUs (1) Weighted-Average Grant (in thousands) Non-vested RSUs as of January 1, 2023 1,617 $ 34.64 Granted 2,297 2.69 Vested (584) 35.25 Forfeited (649) 22.28 Non-vested RSUs as of September 30, 2023 2,681 $ 10.12 (1) RSU awards granted under the 2022 Inducement Grant Plan contain generally the same terms as other RSU awards granted under the Original 2021 LTIP during the fiscal year ended December 31, 2022. The number of RSUs and weighted-average grant date fair value include 205,128 RSUs granted under the 2022 Inducement Grant Plan in July 2022, of which 68,376 RSUs had vested as of January 1, 2023 and the remaining 136,752 RSUs are scheduled to vest in equal installments on December 30, 2023 and December 30, 2024, subject to continued service through each such vesting date. The total unrecognized compensation cost related to non-vested RSUs was $20.5 million as of September 30, 2023 and is expected to be recognized over a weighted-average period of 1.6 years. Performance-Based Restricted Stock Units (“PSUs”) Under the terms of the PSUs granted to certain employees, upon the achievement of certain pre-determined performance objectives, each PSU may settle into shares of our Common Stock. The PSUs will vest, if at all, upon the actual achievement of the related performance objectives, subject to specified change of control exceptions. The following table summarizes the activity under the Amended and Restated 2021 LTIP related to PSUs as of September 30, 2023: Number of PSUs Weighted-Average Grant (in thousands) Non-vested PSUs as of January 1, 2023 96 $ 21.68 Granted 145 2.93 Vested (32) 12.19 Forfeited (44) 15.19 Non-vested PSUs as of September 30, 2023 (1) 165 $ 8.71 (1) Non-vested PSUs reflected in the table above include approximately 84 thousand of PSUs that may settle in shares of our Common Stock equal to 0-120% of the PSUs and 106 thousand PSUs that may settle into shares of Common Stock equal to 0-200% of the PSUs, in each case based on the level of performance. Compensation expense associated with PSUs is recognized over the vesting period of the awards that are ultimately expected to vest when the achievement of the related performance objectives becomes probable. As of September 30, 2023, the achievement of the performance objectives associated with certain non-vested PSUs was deemed not probable of being achieved and, accordingly, $0.3 million of compensation cost has not been recognized. RSUs Subject to Market-Based Vesting Conditions (“Market-Based RSUs”) The Company previously granted Market-Based RSUs to certain employees, pursuant to the terms of which each Market-Based RSU was settleable into shares of Common Stock. The Market-Based RSUs were subject to vesting, if at all, based on the closing trading price per share of our Common Stock over any 30 consecutive trading day-period that occurred prior to the end date specified in the underlying award agreement, subject to continued service through each such vesting date. Based on the Common Stock trading price, the market conditions for the outstanding Market-Based RSUs were not met, and no shares vested as of June 30, 2023. All outstanding unvested Market-Based RSUs were forfeited and cancelled during the three months ended June 30, 2023. Wheels Up Stock Options The following table summarizes the activity under the Amended and Restated 2021 LTIP related to Wheels Up stock options as of September 30, 2023: Number of Wheels Up Weighted- Weighted-Average Grant (in thousands) Outstanding Wheels Up stock options as of January 1, 2023 77 $ 100.00 $ 47.52 Granted — — — Exercised — — — Forfeited — — — Expired — — — Outstanding Wheels Up stock options as of September 30, 2023 77 $ 100.00 $ 47.52 Exercisable Wheels Up stock options as of September 30, 2023 77 $ 100.00 $ 47.52 The aggregate intrinsic value as of September 30, 2023, for Wheels Up stock options that were outstanding and exercisable was nil . The weighted-average remaining contractual term as of September 30, 2023, for Wheels Up stock options that were outstanding and exercisable was approximately 4.1 years. All Wheels Up stock options vested in prior periods. Equity-Based Compensation Expense Compensation expense for WUP profits interests recognized in the condensed consolidated statements of operations was nominal and $0.2 million for the three months ended September 30, 2023 and September 30, 2022, respectively, and $0.1 million and $1.1 million for the nine months ended September 30, 2023 and 2022, respectively. Compensation expense for WUP restricted interests recognized in the condensed consolidated statements of operations was nil for each of the three months ended September 30, 2023 and 2022, and nil and $0.4 million for the nine months ended September 30, 2023 and 2022, respectively. Compensation expense for WUP stock options under the WUP Option Plan and Wheels Up stock options under the Amended and Restated 2021 LTIP recognized in the condensed consolidated statements of operations was $0.2 million and $1.3 million for the three months ended September 30, 2023 and 2022, respectively, and $1.1 million and $5.5 million for the nine months ended September 30, 2023 and 2022, respectively. Compensation expense for RSUs and PSUs recognized in the condensed consolidated statements of operations was $3.3 million and $11.2 million for the three months ended September 30, 2023 and 2022, respectively, and $15.2 million and $29.9 million for the nine months ended September 30, 2023 and 2022, respectively. The following table summarizes equity-based compensation expense recognized by condensed consolidated statement of operations line item (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Cost of revenue $ 826 $ 3,581 $ 3,097 $ 11,320 Technology and development 620 751 1,777 2,047 Sales and marketing 440 2,756 1,781 8,314 General and administrative 1,622 15,416 14,995 44,158 Total equity-based compensation expense $ 3,508 $ 22,504 $ 21,650 $ 65,839 Earnout Shares On July 13, 2021 (the “Business Combination Closing Date”), we consummated the transactions contained in the Agreement and Plan of Merger with Aspirational Consumer Lifestyle Corp. (“Aspirational”), a blank check company, dated as of February 1, 2021, as amended on May 6, 2021 (the “Business Combination”). As part of the Business Combination, existing holders of WUP equity, including certain holders of WUP profits interests and restricted interests, but excluding holders of WUP stock options, have the right to receive up to an aggregate of 0.9 million additional shares of our Common Stock in three equal tranches, which are issuable upon the achievement of share price thresholds of $125.00, $150.00 and $175.00 for any 20 trading days within a period of 30 consecutive trading days on or before July 13, 2026, respectively (the “Earnout Shares”). Earnout Shares are not attributable to any equity-based compensation plan. Earnout Shares are attributable to vested WUP profits interests and restricted interests as of the date each of the Earnout Share market conditions are met. No Earnout Shares have been issued as of September 30, 2023. The grant-date fair value of the Earnout Shares attributable to the holders of WUP profits interests and restricted interests, using a Monte Carlo simulation model, was $57.9 million. The derived service period began on the Closing Date and had a weighted-average period of 1.7 years. Based on the Common Stock trading price, the market conditions were not met, and no Earnout Shares vested as of September 30, 2023. Compensation expense for Earnout Shares recognized in the condensed consolidated statements of operations was nil and $9.7 million for the three months ended September 30, 2023 and 2022, respectively, and $1.4 million and $28.8 million for the nine months ended September 30, 2023 and 2022, respectively. Treasury Stock As of September 30, 2023, we had 275,707 shares of treasury stock. The increase in treasury stock during the nine months ended September 30, 2023 reflects shares of Common Stock withheld to settle employee taxes due upon the vesting of RSUs as well as shares of Common Stock acquired from stockholders who would otherwise have held fractional shares because the number of shares of Common Stock they held before the Reverse Stock Split was not evenly divisible by the reverse stock split ratio, which the Company acquired for cash (without interest, and subject to any required tax withholding applicable to a holder) in lieu of issuance of such fractional shares of Common Stock.

WARRANTS

WARRANTS	9 Months Ended
	Sep. 30, 2023
Warrants and Rights Note Disclosure [Abstract]
WARRANTS	WARRANTSPrior to the Business Combination, Aspirational issued 7,991,544 redeemable public warrants (“Public Warrants”) and 4,529,950 redeemable private warrants (“Private Warrants” and together with the Public Warrants, the “Warrants”). On the Business Combination Closing Date, Wheels Up assumed the Warrants. Each whole Warrant entitles the holder to purchase 1/10th share of Common Stock at a price of $115.00 per whole share of Common Stock. The Public Warrants and Private Warrants became exercisable on September 25, 2021, which was 12 months from the closing of the Aspirational initial public offering, and expire on July 13, 2026 or earlier upon redemption or liquidation. In connection with the Business Combination, we filed a Registration Statement on Form S-1 that was declared effective by the SEC on August 24, 2021, as amended by Post-Effective Amendment No. 1 thereto that was declared effective by the SEC on March 21, 2022, as further amended by Post-Effective Amendment No. 2 to Form S-1 on Form S-3 filed with the SEC on July 20, 2022, and as further amended by Post-Effective Amendment No. 3 to Form S-1 on Form S-3 that was declared effective by the SEC on August 10, 2022 (collectively, the “Selling Stockholder Registration Statement”). The Selling Stockholder Registration Statement relates to the issuance of an aggregate of 1,252,149 shares of Common Stock underlying the Public Warrants and Private Warrants. As of September 30, 2023, there have not been any warrants exercised and 12,521,494 remain outstanding. The Public Warrants were delisted from trading on the NYSE on July 17, 2023 and deregistered under the Exchange Act effective October 5, 2023.

NON-CONTROLLING INTERESTS

NON-CONTROLLING INTERESTS	9 Months Ended
	Sep. 30, 2023
Noncontrolling Interest [Abstract]
NON-CONTROLLING INTERESTS	NON-CONTROLLING INTERESTS MIP LLC is a single purpose entity formed for the purpose of administering and effectuating the award of WUP profits interests to employees, consultants and other qualified persons. Wheels Up is the sole managing member of MIP LLC and, as a result, consolidates the financial results of MIP LLC. We record non-controlling interests representing the ownership interest in MIP LLC held by other members of MIP LLC. In connection with the Business Combination, the Seventh Amended and Restated LLC Agreement of WUP was adopted, allowing members of MIP LLC, subject to certain restrictions, to exchange their vested WUP profits interests for cash or a corresponding number of shares of Common Stock, at the option of Wheels Up, based on the value of such WUP profits interests relative to their applicable participation threshold. The decision of whether to exchange WUP profits interests for cash or Common Stock is made solely at the discretion of Wheels Up. Accordingly, the WUP profits interests held by MIP LLC are treated as permanent equity and changes in the ownership interest of MIP LLC are accounted for as equity transactions. Future exchanges of WUP profits interests, if settled in shares of Common Stock at the discretion of Wheels Up, will reduce the amount recorded as non-controlling interests and increase Additional paid-in-capital on the condensed consolidated balance sheets. The calculation of non-controlling interests was as follows: September 30, 2023 December 31, 2022 Number of WUP common units held by Wheels Up (1) 166,804,743 100.0 % 24,933,857 100.0 % Number of vested WUP profits interests attributable to non-controlling interests (2) — — % — — % Total WUP common units and vested WUP profits interests outstanding 166,804,743 100.0 % 24,933,857 100.0 % (1) WUP common units represent an equivalent ownership of Common Stock outstanding. (2) Based on the closing price of Common Stock on the last trading day of the period covered by this Quarterly Report, there would be no WUP common units issuable upon conversion of vested and unvested WUP profits interests outstanding as of September 30, 2023. Weighted-average ownership percentages are used to allocate net loss to Wheels Up and the non-controlling interest holders. The non-controlling interests weighted-average ownership percentage was 0.0% for each of the three and nine months ended ended September 30, 2023 and 2022.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Legal Proceedings We are party to various legal actions arising in the normal course of business. While we do not expect that the ultimate resolution of any of these pending actions will have a material effect on our consolidated results of operations, financial position, or cash flows, litigation is subject to inherent uncertainties. As such, there can be no assurance that any pending legal action, which we believe to be immaterial as of September 30, 2023, does not become material in the future. Sales and Use Tax Liability We regularly provide services to members in various states within the continental U.S., which may create sales and use tax nexus via temporary presence, potentially requiring the payment of these taxes. We determined that there is uncertainty as to what constitutes nexus in respective states for a state to levy taxes, fees and surcharges relating to our activity. As of September 30, 2023 and December 31, 2022, we estimated the potential exposure to such tax liability was $10.6 million and $10.4 million, respectively, the expense for which was included in accrued expenses on the condensed consolidated balance sheets and in cost of revenue in the condensed consolidated statements of operations as of and for the applicable periods presented.

RELATED PARTIES

RELATED PARTIES	9 Months Ended
	Sep. 30, 2023
Related Party Transactions [Abstract]
RELATED PARTIES	RELATED PARTIES We engage in transactions with certain stockholders who are also members, ambassadors or customers. Such transactions primarily relate to their membership in the Wheels Up program, flights and flight-related services. We incurred expenses of $0.4 million and $1.5 million for the three and nine months ended September 30, 2023, respectively, and $0.1 million and $1.5 million for the three and nine months ended September 30, 2022, respectively, from transactions related to the CCA with Delta. As of September 30, 2023 and December 31, 2022, $0.4 million and $2.4 million, respectively, were included in Accrued expenses on the condensed consolidated balance sheets and $4.6 million and nil, respectively, were included in Other non-current liabilities on the condensed consolidated balance sheets related to transactions associated with the CCA with Delta. The Company completed certain financing transactions with Delta during the three months ended September 30, 2023, including the Amended Note, the Term Loan and the issuance of a portion of the Initial Shares to Delta, in each case in amounts equal to the amount of the Term Loan funded by Delta in relation to the total Term Loan funded on the Credit Agreement Closing Date. See Note 7, Long-Term Debt and Note 10, Stockholders Equity and Equity-Based Compensation Expense, for additional information about the Term Loan, Revolving Credit Facility and issuance of a portion of the Initial Shares to Delta during the three months ended September 30, 2023.

RESTRUCTURING AND RELATED CHARG

RESTRUCTURING AND RELATED CHARGES	9 Months Ended
	Sep. 30, 2023
Restructuring and Related Activities [Abstract]
RESTRUCTURING AND RELATED CHARGES	RESTRUCTURING AND RELATED CHARGES On March 1, 2023, we announced a restructuring plan (the “Restructuring Plan”) as part of our previously announced focus on implementing cost reductions and improving the efficiency of our operations, which consisted of a reduction in headcount (excluding pilots, maintenance and operations-support personnel). We estimated that we would incur approximately $14 million in total pre-tax charges in connection with the Restructuring Plan, primarily related to severance payments, employee benefits and equity-based compensation. As of September 30, 2023, we have incurred $17.7 million of charges associated with the Restructuring Plan related to severance payments, employee benefits and equity-based compensation, which represents all cash and non-cash charges expected under the Restructuring Plan. During the three months ended December 31, 2022, we recorded $7.2 million of expenses related to actions taken in the fourth quarter of 2022 and in connection with the Restructuring Plan. During the six months ended June 30, 2023, the remaining $10.5 million of expenses related to the Restructuring Plan were incurred and recorded in the Company’s condensed consolidated statement of operations, as follows (in thousands): Cost of revenue $ 755 Technology and development 2,299 Sales and marketing 2,058 General and administrative 5,408 Total restructuring expenses $ 10,520

INCOME TAXES

INCOME TAXES	9 Months Ended
	Sep. 30, 2023
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES We are subject to U.S. federal, state and local income taxes with respect to our allocable share of any taxable income or loss from WUP, as well as any standalone income or loss Wheels Up generates. WUP is treated as a partnership for U.S. federal and most applicable state and local income tax purposes and generally does not pay income taxes in most jurisdictions. Instead, any taxable income or loss generated by WUP is passed through to and included in the taxable income or loss of its members, including Wheels Up. We are also subject to income taxes in the various foreign jurisdictions in which we operate. We recorded income tax expense of $0.6 million and $0.8 million for the three and nine months ended September 30, 2023, respectively, and income tax expense of $0.2 million and $0.5 million for the three and nine months ended September 30, 2022, respectively. The effective tax rate was (0.4)% and (0.2)% for the three and nine months ended September 30, 2023, respectively, and (0.1)% and (0.2)% for the three and nine months ended September 30, 2022, respectively. Our effective tax rate for the three and nine months ended September 30, 2023 differs from the federal statutory rate of 21%, primarily due to a full valuation allowance against the majority of our net deferred tax assets where it is more likely than not that the deferred tax assets will not be realized and geographical mix of our earnings. We currently expect the undistributed earnings of our foreign subsidiaries to be indefinitely reinvested. Accordingly, the Company has not provided for the tax effect, if any, of limited outside basis differences of its foreign subsidiaries. If these foreign earnings are repatriated to the U.S., or if the Company determines that such earnings are repatriated to the U.S., or if the Company determines that such earnings will be remitted in a future period, additional tax provisions may be required. We evaluate the realizability of our deferred tax assets on a quarterly basis and establish valuation allowances when it is more likely than not that all or a portion of the deferred tax assets may not be realized. In making such a determination, we consider all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, and tax-planning strategies. As of September 30, 2023, we concluded, based on the weight of all available positive and negative evidence, that it is more likely than not that the majority of U.S. deferred tax assets will not be realized. Accordingly, a valuation allowance has been established on the majority of our net deferred tax assets in the U.S. In general, under Section 382 of the Internal Revenue Code of 1986 (as amended, the “Code”), a corporation that undergoes an “ownership change” is subject to limitations on its ability to utilize its pre-change net operating losses or tax credits to offset future taxable income or taxes. As a result of the Initial Issuance, the Company experienced an ownership change during the third quarter of 2023, that will limit the availability of our tax attributes offset future income. A formal Section 382 analysis is being performed to determine the extent of the limitations. Our net operating losses and tax attributes are currently subject to a full valuation allowance. Accordingly, we do not believe it will have a material impact on our consolidated financial statements. Additionally, the Company is subject to the income tax effects associated with the Global Intangible Low-Taxed Income (“GILTI”) provisions and treats the tax effects of GILTI as a current period expense in the period incurred.

NET LOSS PER SHARE

NET LOSS PER SHARE	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
NET LOSS PER SHARE	NET LOSS PER SHARE The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share data): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Numerator: Net loss attributable to Wheels Up Experience Inc. - basic and diluted $ (144,813) $ (148,838) $ (406,272) $ (330,250) Denominator: Weighted-average shares of Common Stock outstanding - basic and diluted 41,261,003 24,435,096 30,737,324 24,434,787 Basic and diluted net loss per share of Common Stock $ (3.51) $ (6.09) $ (13.22) $ (13.52) There were no dividends declared or paid during each of the three and nine months ended September 30, 2023 and 2022. Basic and diluted net loss per share were computed using the two-class method. Shares of unvested restricted stock are considered participating securities, because these awards contain a non-forfeitable right to participate equally in any dividends prior to forfeiture of the restricted stock, if any, irrespective of whether the awards ultimately vest. All issued and outstanding shares of restricted stock are included in the weighted-average shares of Common Stock outstanding for all periods presented. WUP profits interests held by other members of MIP LLC are not subject to the net loss per share calculation until such time the vested WUP profits interests are actually exchanged for shares of Common Stock. The following securities were not included in the computation of diluted shares outstanding, because the effect would be anti-dilutive, and issuance of such shares is contingent upon the satisfaction of certain conditions which were not satisfied by the end of the period: September 30, 2023 2022 Warrants (1) 1,252,149 1,252,149 Earnout Shares 900,000 900,000 RSUs (2) 3,109,823 2,432,789 Stock options 1,268,584 1,415,066 Total anti-dilutive securities 6,530,556 6,000,003 (1) Each Warrant entitles the holder to purchase 1/10th of one share of Common Stock at a price of $115.00 per whole share of Common Stock. (2) Includes total RSUs and PSUs outstanding as of September 30, 2023 and total RSUs, PSUs and Market-Based RSUs outstanding as of September 30, 2022.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	9 Months Ended
	Sep. 30, 2023
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS[PENDING]

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Pay vs Performance Disclosure
Net Income (Loss) Attributable to Parent	$ (144,813)	$ (148,838)	$ (406,272)	$ (330,250)

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Sep. 30, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

SUMMARY OF BUSINESS AND SIGNI_2

SUMMARY OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated financial statements and accompanying notes have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial reporting and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the financial information and footnotes required by U.S. GAAP for annual financial statements. In the opinion of the Company’s management, the condensed consolidated financial statements include all adjustments necessary for the fair presentation of the Company’s balance sheet as of September 30, 2023, its results of operations, including its comprehensive loss and stockholders' equity for the three months ended September 30, 2023 and 2022, and its results of operations, including its comprehensive loss and stockholders' equity and its cash flows for the nine months ended September 30, 2023 and 2022. All adjustments are of a normal recurring nature. The results for the three and nine months ended September 30, 2023 are not necessarily indicative of the results to be expected for any subsequent quarter or for the fiscal year ending December 31, 2023. Immediately after the close of business on the New York Stock Exchange (the “ NYSE”) on June 7, 2023, the reverse stock split of Wheels Up’s outstanding shares of Common Stock, at a reverse stock split ratio of 1-for-10 (the “Reverse Stock Split”) and contemporaneously with the Reverse Stock Split, a proportionate reduction in the number of authorized shares of Common Stock from 2.5 billion shares of Common Stock to 250 million shares (the “Authorized Share Reduction”). Accordingly, the presentation of all periods covered by the condensed consolidated financial statements contained herein have been adjusted to give retroactive effect to the Reverse Stock Split, including adjustments to per share net loss and other per share of Common Stock amounts. These condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information. Consistent with these requirements, this Form 10-Q does not include all the information required by GAAP for complete financial statements. As a result, this Form 10-Q should be read in conjunction with the audited consolidated financial statements and related notes included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2022, filed with the Securities and Exchange Commission (the “SEC”) on March 31, 2023. Liquidity The accompanying condensed consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities in the ordinary course of business. Subsequent to August 14, 2023, we obtained funding as discussed in Note 7, Long-Term Debt , amended the Equipment Notes to reduce liquidity covenant requirements and divested the aircraft management business as discussed in Note 4, Acquisitions and Divestitures
Principles of Consolidation	Principles of Consolidation The condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. We consolidate Wheels Up MIP LLC (“MIP LLC”) and record the profits interests held in MIP LLC that Wheels Up does not own as non-controlling interests (see Note 12). All intercompany transactions and balances have been eliminated in consolidation.
Use of Estimates	Use of EstimatesPreparing the condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates due to risks and uncertainties. The most significant estimates include, but are not limited to, the useful lives and residual values of purchased aircraft, the fair value of financial assets and liabilities, acquired intangible assets, goodwill, contingent consideration and other assets and liabilities, sales and use tax, the estimated life of member relationships, the determination of the allowance for credit losses, impairment assessments, the determination of the valuation allowance for deferred tax assets and the incremental borrowing rate for leases.
Foreign Currency Translation Adjustments	Foreign Currency Translation Adjustments Assets and liabilities of foreign subsidiaries, where the functional currency is not the U.S. dollar, have been translated at period-end exchange rates and profit and loss accounts have been translated using weighted-average exchange rates. Adjustments resulting from currency translation have been recorded in the equity section of the condensed consolidated balance sheets and the condensed consolidated statements of other comprehensive loss as a cumulative translation adjustment.
Impairment	Impairment During the second quarter of 2023, we determined that, because of continued negative cash flows and changes in our management and business strategy, there was an indication that the carrying value of the long-lived assets associated with the WUP Legacy reporting unit may not be recoverable. As a result, we performed an undiscounted cash flow analysis of our long-lived assets for potential impairment as of June 1, 2023. Based on the analysis, it was determined that there was no impairment to our long-lived assets. As a result of the aforementioned factors, we determined that there was an indication that it was more likely than not that the fair value of our WUP Legacy reporting unit was less than its carrying amount. We performed an interim quantitative impairment assessment of goodwill as of June 1, 2023. Using a discounted cash flow approach, we calculated the fair value of WUP Legacy based on the present value of estimated future cash flows. The significant underlying inputs used to measure the fair value included forecasted revenue growth rates and margins, weighted average cost of capital, normalized working capital level and projected long-term growth rates. As a result of this assessment, we recognized a goodwill impairment charge of $70.0 million relating to the WUP Legacy reporting unit during the three months ended June 30, 2023. The decline in the fair value of the reporting unit was primarily due to a more material reduction in working capital than expected during the three months ended June 30, 2023, as well as an increase in the discount rate. To facilitate reconciliation of the fair value of our reporting units to our market capitalization as of June 1, 2023, we elected to perform a quantitative impairment assessment of the Air Partner reporting unit as of June 1, 2023, using a combination of the discounted cash flow and guideline public company methods, which did not result in impairment to goodwill. Based on the valuation, the fair value of the Air Partner reporting unit exceeded its carrying value by more than 10%. During the third quarter of 2023, we determined that upon entering into the Term Loan and Revolving Credit Facility (as each is defined below) on September 20, 2023 (see Note 7), and due to associated changes to our ownership and governance structure on that same date (see Note 10), there was an indication that the fair value of the WUP Legacy reporting unit was less than its carrying amount. We performed an interim quantitative impairment assessment of goodwill as of September 20, 2023. Using a discounted cash flow approach, we calculated the fair value of WUP Legacy, based on the present value of estimated future cash flows. The significant underlying inputs used to measure the fair value included forecasted revenue growth rates and margins, weighted average cost of capital, normalized working capital level and projected long-term growth rates. As a result of this assessment, we recognized a goodwill impairment charge of $56.2 million relating to the WUP Legacy reporting unit during the three months ended September 30, 2023. The impairment charge represents the amount by which the carrying value of the reporting unit as of the assessment date exceeded the estimated fair value of the reporting unit as of the assessment date. Since the previous analysis on June 1, 2023, the fair value of the reporting unit increased as a result of the run-off of unprofitable periods in our estimated future cash flows; however, the carrying value of the reporting unit increased in a substantially equivalent amount due to the issuance of the Term Loan (see Note 7) and Initial Shares (as defined in Note 10).
Adopted Accounting Pronouncements and Accounting Pronouncements Not Yet Effective	Adopted Accounting Pronouncements and Accounting Pronouncements Not Yet Effective There have been no recent accounting pronouncements, changes in accounting pronouncements or recently adopted accounting guidance during the three months ended September 30, 2023 that are of significance or potential significance to us.

REVENUE RECOGNITION (Tables)

REVENUE RECOGNITION (Tables)	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue	The following table disaggregates revenue by service type and the timing of when these services are provided to the member or customer (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Services transferred at a point in time: Flights, net of discounts and incentives $ 214,645 $ 278,917 $ 681,691 $ 799,351 Aircraft management 51,081 56,558 158,396 172,914 Other 29,720 58,728 89,665 121,695 Services transferred over time: Memberships 20,622 22,409 63,780 67,076 Aircraft management 2,154 2,404 7,035 7,272 Other 1,841 1,340 6,370 3,195 Total $ 320,063 $ 420,356 $ 1,006,937 $ 1,171,503
Schedule of Accounts Receivable Net	Accounts receivable, net consists of the following (in thousands): September 30, December 31, Gross receivables from members and customers $ 49,705 $ 112,243 Undeposited funds 5,304 10,122 Less: Allowance for credit losses (8,236) (9,982) Accounts receivable, net $ 46,773 $ 112,383
Schedule of Deferred Revenue	Deferred revenue consists of the following (in thousands): September 30, December 31, Flights - Prepaid Blocks $ 651,458 $ 1,023,985 Memberships - annual dues 35,935 43,970 Memberships - initiation fees 2,804 3,899 Flights - credits 1,773 4,246 Other 399 775 Deferred revenue - total 692,369 1,076,875 Less: Deferred revenue - current (691,214) (1,075,133) Deferred revenue - non-current $ 1,155 $ 1,742 Changes in deferred revenue for the nine months ended September 30, 2023 were as follows (in thousands): Deferred revenue as of December 31, 2022 $ 1,076,875 Amounts deferred during the period 342,923 Revenue recognized from amounts included in the deferred revenue beginning balance (571,211) Revenue from current period sales (156,218) Deferred revenue as of September 30, 2023 $ 692,369
Schedule of Revenue Expected to be Recognized in Future Periods	Revenue expected to be recognized in future periods for performance obligations that are unsatisfied, or partially unsatisfied, as of September 30, 2023 were as follows (in thousands): Remainder of 2023 $ 113,830 2024 292,149 2025 143,268 2026 143,122 Total $ 692,369

PROPERTY AND EQUIPMENT (Tables)

PROPERTY AND EQUIPMENT (Tables)	9 Months Ended
	Sep. 30, 2023
Property, Plant and Equipment [Abstract]
Schedule of Property and Equipment	Property and equipment consist of the following (in thousands): September 30, 2023 December 31, 2022 Aircraft $ 509,984 $ 566,338 Software development costs 80,582 65,303 Leasehold improvements 22,274 11,930 Computer equipment 3,447 3,014 Buildings and improvements 1,424 1,424 Furniture and fixtures 4,311 3,208 Tooling 4,180 3,835 Vehicles 2,351 1,538 628,553 656,590 Less: Accumulated depreciation and amortization (266,500) (262,031) Total $ 362,053 $ 394,559

ACQUISITIONS AND DIVESTITURES (

ACQUISITIONS AND DIVESTITURES (Tables)	9 Months Ended
	Sep. 30, 2023
Business Combination and Asset Acquisition [Abstract]
Schedule of Preliminary Purchase Price Allocation	As of the date of acquisition, the total purchase price allocated to the Alante Air assets acquired and liabilities assumed according to their estimated fair values were as follows (in thousands): Current assets $ 4,452 Goodwill 13,069 Other assets 22,048 Total assets acquired 39,569 Total liabilities assumed (24,101) Net assets acquired $ 15,468 As of the date of acquisition, the total purchase price allocated to the Air Partner assets acquired and liabilities assumed according to their estimated fair values were as follows (in thousands): Current assets $ 49,617 Property and equipment, net 2,012 Operating lease right-of-use assets 2,780 Goodwill 83,910 Intangible assets 20,921 Restricted cash 27,507 Other assets 1,686 Total assets acquired 188,433 Total liabilities assumed (80,239) Net assets acquired $ 108,194
Schedule of Acquired Intangible Assets	The amounts allocated to acquired intangible assets and their associated weighted-average amortization periods, which were determined based on the period the assets are expected to contribute directly or indirectly to our cash flows, consisted of the following: Amount Weighted-Average Amortization Period Customer relationships $ 16,521 5.7 Backlog 1,458 1.5 Trade name 1,931 1.9 Developed technology 1,011 5.8 Total acquired intangible assets $ 20,921 5.1
Schedule of Unaudited Pro Forma Summary of Operations	The accompanying unaudited pro forma summary represents the consolidated results of operations as if the 2022 acquisitions of Alante Air and Air Partner had been completed as of January 1, 2022. The unaudited pro forma financial results for 2022 reflect the results for the three and nine months ended September 30, 2022, as well as the effects of pro forma adjustments for the transactions in 2022. The unaudited pro forma financial information includes the accounting effects of the acquisitions, including adjustments to the amortization of intangible assets and professional fees associated with the transactions. The pro forma results were based on estimates and assumptions, which we believe are reasonable but remain subject to adjustment. The unaudited pro forma summary does not necessarily reflect the actual results that would have been achieved had the companies been combined during the periods presented, nor is it necessarily indicative of future consolidated results (in thousands, except per share data). Nine Months Ended September 30, 2022 Net revenue $ 1,209,321 Net loss $ (266,628) Net loss attributable to Wheels Up Experience Inc. $ (266,628) Net loss per share (1) $ (10.98) (1) Adjusted for the impact of the Reverse Stock Split

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS (Tables)	9 Months Ended
	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The following table presents goodwill carrying values and the change in balance, by reporting unit, during the nine months ended September 30, 2023 (in thousands): WUP Legacy Air Partner Total Balance as of December 31, 2022 (1) $ 270,467 $ 77,651 $ 348,118 Acquisitions (2) — 350 350 Impairment (3) (126,200) — (126,200) Divestitures (4) (8,169) — (8,169) Foreign currency translation adjustment — 708 708 Balance as of September 30, 2023 $ 136,098 $ 78,710 $ 214,808 (1) Net of accumulated impairment losses of $180 million, all of which was recognized on the goodwill attributable to the WUP Legacy reporting unit during the year ended December 31, 2022. (2) Reflects the current period impact of measurement period adjustments (See Note 4) (3) Impairment charge recognized during the second and third quarters of 2023 as a result of an interim quantitative assessments of goodwill as of June 1, 2023 and September 20, 2023, respectively (See Note 1) (4) Reflects the amount of goodwill allocated to the divestiture of the aircraft management business (See Note 4).
Schedule of Intangible Assets	The gross carrying value, accumulated amortization and net carrying value of intangible assets consisted of the following (in thousands): September 30, 2023 Gross Carrying Accumulated Amortization Net Carrying Status $ 80,000 $ 29,644 $ 50,356 Customer relationships 89,121 32,226 56,895 Trade name 13,161 6,321 6,840 Developed technology 20,556 11,580 8,976 Leasehold interest - favorable 600 96 504 Backlog 1,458 1,313 145 Foreign currency translation adjustment (1,480) (547) (933) Total $ 203,626 $ 80,843 $ 122,783 December 31, 2022 Gross Carrying Accumulated Amortization Net Carrying Status $ 80,000 $ 23,644 $ 56,356 Customer relationships 91,121 24,613 66,508 Non-competition agreement 210 210 — Trade name 16,161 8,294 7,867 Developed technology 20,556 9,332 11,224 Leasehold interest - favorable 600 80 520 Backlog 1,458 880 578 Foreign currency translation adjustment (1,662) (374) (1,288) Total $ 208,444 $ 66,679 $ 141,765
Schedule of Intangible Liabilities	Associated with our acquisition of Delta Private Jets on January 17, 2020, we recognized intangible liabilities for the fair value of complimentary Connect Memberships provided to existing Delta SkyMiles 360 customers as of the acquisition date, as required under the Commercial Cooperation Agreement (as amended, the “CCA”) with Delta. The gross carrying value, accumulated amortization and net carrying value of intangible liabilities consisted of the following (in thousands): September 30, 2023 Gross Carrying Accumulated Amortization Net Carrying Intangible liabilities $ 20,000 $ 7,417 $ 12,583 December 31, 2022 Gross Carrying Accumulated Amortization Net Carrying Intangible liabilities $ 20,000 $ 5,917 $ 14,083
Schedule of Future Amortization Expense of Intangible Assets and Intangible Liabilities	Future amortization expense of intangible assets and intangible liabilities held as of September 30, 2023, were as follows (in thousands): Intangible Assets Intangible Liabilities Remainder of 2023 $ 5,865 $ 500 2024 22,759 2,000 2025 22,345 2,000 2026 21,486 2,000 2027 17,018 2,000 2028 and Thereafter 33,310 4,083 Total $ 122,783 $ 12,583

CASH EQUIVALENTS AND RESTRICT_2

CASH EQUIVALENTS AND RESTRICTED CASH (Tables)	9 Months Ended
	Sep. 30, 2023
Cash and Cash Equivalents [Abstract]
Schedule of Cash and Cash Equivalents	A reconciliation of cash and cash equivalents and restricted cash from the condensed consolidated balance sheets to the condensed consolidated statements of cash flows is as follows (in thousands): September 30, 2023 December 31, 2022 Cash and cash equivalents $ 244,847 $ 585,881 Restricted cash 29,315 34,272 Total $ 274,162 $ 620,153
Schedule of Restrictions on Cash and Cash Equivalents	A reconciliation of cash and cash equivalents and restricted cash from the condensed consolidated balance sheets to the condensed consolidated statements of cash flows is as follows (in thousands): September 30, 2023 December 31, 2022 Cash and cash equivalents $ 244,847 $ 585,881 Restricted cash 29,315 34,272 Total $ 274,162 $ 620,153

LONG-TERM DEBT (Tables)

LONG-TERM DEBT (Tables)	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Schedule of Debt	The following table presents the components of long-term debt on our condensed consolidated balance sheets (in thousands): Weighted Average Interest Rate September 30, 2023 December 31, 2022 Equipment Notes 12.0 % $ 232,610 $ 270,000 Term Loan 10.0 % 350,972 — Total debt 583,582 270,000 Less: Total unamortized deferred financing costs and debt discount 322,926 16,760 Less: Current maturities of long-term debt 25,227 27,006 Long-term debt $ 235,429 $ 226,234
Schedule of Maturities of Long-Term Debt	Maturities of our principal debt payments for the next five years are as follows (in thousands): Maturities Remainder of 2023 $ 6,307 2024 25,227 2025 43,916 2026 38,907 2027 33,258 2028 and Thereafter 435,967 Total $ 583,582

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Schedule of Financial Instruments Measured at Fair Value on Recurring Basis	Financial instruments that are measured at fair value on a recurring basis and their corresponding placement in the fair value hierarchy consisted of the following (in thousands): September 30, 2023 Level 1 Level 2 Level 3 Fair Value Assets: Money market funds $ 89 $ — $ — 89 Total assets $ 89 $ — $ — $ 89 Liabilities: Warrant liability - Public Warrants $ 42 $ — $ — $ 42 Warrant liability - Private Warrants — 24 — 24 Equipment Notes — — 269,801 269,801 Term loan $ — $ — 268,400 $ 268,400 Total liabilities $ 42 $ 24 $ 538,201 $ 538,267 December 31, 2022 Level 1 Level 2 Level 3 Fair Value Assets: Money market funds $ 230,626 $ — $ — $ 230,626 Treasury bills 199,700 — — 199,700 Total assets $ 430,326 $ — $ — $ 430,326 Liabilities: Warrant liability - Public Warrants $ 479 $ — $ — $ 479 Warrant liability - Private Warrants — 272 — 272 Equipment Notes — 270,000 — 270,000 Total liabilities $ 479 $ 270,272 $ — $ 270,751
Schedule of Changes in Fair Value of Warrant Liability	The following table presents the changes in the fair value of the warrant liability (in thousands): Public Warrants Private Warrants Total Warrant Liability Fair value as of December 31, 2022 $ 479 $ 272 $ 751 Change in fair value of warrant liability (437) (248) (685) Fair value as of September 30, 2023 $ 42 $ 24 $ 66

LEASES (Tables)

LEASES (Tables)	9 Months Ended
	Sep. 30, 2023
Leases [Abstract]
Schedule of Components of Net Lease Cost	The components of net lease cost were as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Operating lease costs $ 9,313 $ 9,789 $ 30,648 $ 28,614 Short-term lease costs 2,039 8,086 6,676 22,600 Variable lease costs 10,519 3,563 25,018 12,516 Total lease costs $ 21,871 $ 21,438 $ 62,342 $ 63,730
Schedule of Supplemental Cash Flow Information	Supplemental cash flow information related to leases were as follows (in thousands): Nine Months Ended September 30, 2023 2022 Cash paid for amounts included in the measurement of operating lease liabilities: Operating cash flows paid for operating leases $ 28,318 $ 28,865 Right-of-use assets obtained in exchange for operating lease obligations $ 5,742 $ 46,916
Schedule of Supplemental Balance Sheet Information	Supplemental balance sheet information related to leases were as follows: September 30, 2023 December 31, 2022 Weighted-average remaining lease term (in years): Operating leases 6.7 5.9 Weighted-average discount rate: Operating leases 9.1 % 9.0 %
Schedule of Maturities of Operating Leases	Maturities of lease liabilities, as of September 30, 2023, were as follows (in thousands): Year ending December 31, Operating Leases 2023 (remaining) $ 8,159 2024 28,522 2025 16,993 2026 9,826 2027 7,520 2028 and Thereafter 43,090 Total lease payments 114,110 Less: Imputed interest (31,561) Total lease obligations $ 82,549

STOCKHOLDER_S EQUITY AND EQUI_2

STOCKHOLDER’S EQUITY AND EQUITY-BASED COMPENSATION (Tables)	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Profits Interests Activity	The following table summarizes the WUP profits interests activity under the WUP Management Incentive Plan as of September 30, 2023: Number of WUP Weighted-Average Grant (in thousands) Outstanding WUP profits interests as of January 1, 2023 2,881 $ 4.16 Granted — — Exchanged — — Expired/forfeited — — Outstanding WUP profits interests as of September 30, 2023 2,881 $ 4.16
Schedule of Nonvested Profit Interests Activity	The following table summarizes the status of non-vested WUP profits interests as of September 30, 2023: Number of WUP Weighted-Average Grant (in thousands) Non-vested WUP profits interests as of January 1, 2023 170 $ 4.19 Granted — — Vested (170) 4.19 Forfeited — — Non-vested WUP profits interests as of September 30, 2023 — $ —
Schedule of Stock Option Activity	The following table summarizes the activity under the WUP Option Plan as of September 30, 2023: Number of WUP Weighted- Weighted-Average Grant (in thousands) Outstanding WUP stock options as of January 1, 2023 1,280 $ 75.10 $ 12.02 Granted — — — Exercised — — — Forfeited (78) 71.63 7.34 Expired (10) 72.71 6.74 Outstanding WUP stock options as of September 30, 2023 1,192 $ 75.35 $ 12.38 Exercisable WUP stock options as of September 30, 2023 1,192 $ 75.35 $ 12.38 The following table summarizes the activity under the Amended and Restated 2021 LTIP related to Wheels Up stock options as of September 30, 2023: Number of Wheels Up Weighted- Weighted-Average Grant (in thousands) Outstanding Wheels Up stock options as of January 1, 2023 77 $ 100.00 $ 47.52 Granted — — — Exercised — — — Forfeited — — — Expired — — — Outstanding Wheels Up stock options as of September 30, 2023 77 $ 100.00 $ 47.52 Exercisable Wheels Up stock options as of September 30, 2023 77 $ 100.00 $ 47.52
Schedule of Nonvested Share Activity	The following table summarizes the status of non-vested WUP stock options as of September 30, 2023: Number of WUP Stock Options Weighted-Average Grant (in thousands) Non-vested WUP stock options as of January 1, 2023 104 $ 19.95 Granted — — Vested (102) 20.03 Expired — — Forfeited (2) 16.01 Non-vested WUP stock options as of September 30, 2023 — $ —
Schedule of LTIP RSUs	The following table summarizes the activity under the Amended and Restated 2021 LTIP related to RSU s as of September 30, 2023: Number of RSUs (1) Weighted-Average Grant (in thousands) Non-vested RSUs as of January 1, 2023 1,617 $ 34.64 Granted 2,297 2.69 Vested (584) 35.25 Forfeited (649) 22.28 Non-vested RSUs as of September 30, 2023 2,681 $ 10.12 (1) RSU awards granted under the 2022 Inducement Grant Plan contain generally the same terms as other RSU awards granted under the Original 2021 LTIP during the fiscal year ended December 31, 2022. The number of RSUs and weighted-average grant date fair value include 205,128 RSUs granted under the 2022 Inducement Grant Plan in July 2022, of which 68,376 RSUs had vested as of January 1, 2023 and the remaining 136,752 RSUs are scheduled to vest in equal installments on December 30, 2023 and December 30, 2024, subject to continued service through each such vesting date.
Schedule of Performance Stock Units	The following table summarizes the activity under the Amended and Restated 2021 LTIP related to PSUs as of September 30, 2023: Number of PSUs Weighted-Average Grant (in thousands) Non-vested PSUs as of January 1, 2023 96 $ 21.68 Granted 145 2.93 Vested (32) 12.19 Forfeited (44) 15.19 Non-vested PSUs as of September 30, 2023 (1) 165 $ 8.71 (1) Non-vested PSUs reflected in the table above include approximately 84 thousand of PSUs that may settle in shares of our Common Stock equal to 0-120% of the PSUs and 106 thousand PSUs that may settle into shares of Common Stock equal to 0-200% of the PSUs, in each case based on the level of performance.
Schedule of Equity-based Compensation Expense	The following table summarizes equity-based compensation expense recognized by condensed consolidated statement of operations line item (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Cost of revenue $ 826 $ 3,581 $ 3,097 $ 11,320 Technology and development 620 751 1,777 2,047 Sales and marketing 440 2,756 1,781 8,314 General and administrative 1,622 15,416 14,995 44,158 Total equity-based compensation expense $ 3,508 $ 22,504 $ 21,650 $ 65,839

NON-CONTROLLING INTERESTS (Tabl

NON-CONTROLLING INTERESTS (Tables)	9 Months Ended
	Sep. 30, 2023
Noncontrolling Interest [Abstract]
Schedule of Calculation of Non-controlling Interests	The calculation of non-controlling interests was as follows: September 30, 2023 December 31, 2022 Number of WUP common units held by Wheels Up (1) 166,804,743 100.0 % 24,933,857 100.0 % Number of vested WUP profits interests attributable to non-controlling interests (2) — — % — — % Total WUP common units and vested WUP profits interests outstanding 166,804,743 100.0 % 24,933,857 100.0 % (1) WUP common units represent an equivalent ownership of Common Stock outstanding.

RESTRUCTURING AND RELATED CHA_2

RESTRUCTURING AND RELATED CHARGES (Tables)	9 Months Ended
	Sep. 30, 2023
Restructuring and Related Activities [Abstract]
Schedule of Restructuring and Related Costs	During the six months ended June 30, 2023, the remaining $10.5 million of expenses related to the Restructuring Plan were incurred and recorded in the Company’s condensed consolidated statement of operations, as follows (in thousands): Cost of revenue $ 755 Technology and development 2,299 Sales and marketing 2,058 General and administrative 5,408 Total restructuring expenses $ 10,520

NET LOSS PER SHARE (Tables)

NET LOSS PER SHARE (Tables)	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Net Loss Per Share	The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share data): Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Numerator: Net loss attributable to Wheels Up Experience Inc. - basic and diluted $ (144,813) $ (148,838) $ (406,272) $ (330,250) Denominator: Weighted-average shares of Common Stock outstanding - basic and diluted 41,261,003 24,435,096 30,737,324 24,434,787 Basic and diluted net loss per share of Common Stock $ (3.51) $ (6.09) $ (13.22) $ (13.52)
Schedule of Anti-dilutive Securities	The following securities were not included in the computation of diluted shares outstanding, because the effect would be anti-dilutive, and issuance of such shares is contingent upon the satisfaction of certain conditions which were not satisfied by the end of the period: September 30, 2023 2022 Warrants (1) 1,252,149 1,252,149 Earnout Shares 900,000 900,000 RSUs (2) 3,109,823 2,432,789 Stock options 1,268,584 1,415,066 Total anti-dilutive securities 6,530,556 6,000,003 (1) Each Warrant entitles the holder to purchase 1/10th of one share of Common Stock at a price of $115.00 per whole share of Common Stock. (2) Includes total RSUs and PSUs outstanding as of September 30, 2023 and total RSUs, PSUs and Market-Based RSUs outstanding as of September 30, 2022.

SUMMARY OF BUSINESS AND SIGNI_3

SUMMARY OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)			3 Months Ended			9 Months Ended		12 Months Ended
	Jun. 07, 2023 shares	Jun. 01, 2023 USD ($)	Sep. 30, 2023 USD ($) member shares	Jun. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) aircraft member shares	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) shares	Sep. 20, 2023	Jun. 06, 2023 shares
Goodwill [Line Items]
Marketplace base rate | member			11,000			11,000
Number of aircraft | aircraft						1,500
Reverse stock split ratio	0.1
Common stock authorized (in shares) | shares	250,000,000		250,000,000			250,000,000		250,000,000		2,500,000,000
Impairment of long-lived assets		$ 0
Impairment of goodwill			$ 56,200,000		$ 62,000,000	$ 126,200,000	$ 62,000,000
Percent of fair value of Air Partner reporting unit exceeded carrying value (more than)		10%							20%
WUP Legacy
Goodwill [Line Items]
Impairment of goodwill			$ 56,200,000	$ 70,000,000		$ 126,200,000		$ 180,000,000

REVENUE RECOGNITION - Schedule

REVENUE RECOGNITION - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 320,063	$ 420,356	$ 1,006,937	$ 1,171,503
Services transferred at a point in time: | Flights, net of discounts and incentives
Disaggregation of Revenue [Line Items]
Revenue	214,645	278,917	681,691	799,351
Services transferred at a point in time: | Aircraft management
Disaggregation of Revenue [Line Items]
Revenue	51,081	56,558	158,396	172,914
Services transferred at a point in time: | Other
Disaggregation of Revenue [Line Items]
Revenue	29,720	58,728	89,665	121,695
Services transferred over time: | Aircraft management
Disaggregation of Revenue [Line Items]
Revenue	2,154	2,404	7,035	7,272
Services transferred over time: | Memberships
Disaggregation of Revenue [Line Items]
Revenue	20,622	22,409	63,780	67,076
Services transferred over time: | Other
Disaggregation of Revenue [Line Items]
Revenue	$ 1,841	$ 1,340	$ 6,370	$ 3,195

REVENUE RECOGNITION - Narrative

REVENUE RECOGNITION - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Discounts and incentives	$ 2,700	$ 2,700	$ 6,700	$ 9,400
Revenue	320,063	420,356	1,006,937	1,171,503
Capitalized sales commission and referral fees	1,900	3,300	6,000	12,600
Amortization expense	2,600	4,400	9,400	12,100
Other | Whole Aircraft Sales
Disaggregation of Revenue [Line Items]
Revenue	2,800	35,900	18,200	63,900
Other | Group Charter
Disaggregation of Revenue [Line Items]
Revenue	9,800	8,700	25,700	19,800
Other | Safety and Security
Disaggregation of Revenue [Line Items]
Revenue	5,900	$ 5,900	17,500	$ 12,600
Other | Software-as-a-service
Disaggregation of Revenue [Line Items]
Revenue	5,900		7,000
Prepaid expenses
Disaggregation of Revenue [Line Items]
Capitalized contract cost, net	4,800		4,800		$ 8,700
Other current assets
Disaggregation of Revenue [Line Items]
Capitalized contract cost, net	$ 600		$ 600		$ 1,300

REVENUE RECOGNITION - Schedul_2

REVENUE RECOGNITION - Schedule of Accounts Receivable Net Consists (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Gross receivables from members and customers	$ 49,705	$ 112,243
Undeposited funds	5,304	10,122
Less: Allowance for credit losses	(8,236)	(9,982)
Accounts receivable, net	$ 46,773	$ 112,383

REVENUE RECOGNITION - Schedul_3

REVENUE RECOGNITION - Schedule of Deferred Revenue (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Deferred revenue - total	$ 692,369	$ 1,076,875
Less: Deferred revenue - current	(691,214)	(1,075,133)
Deferred revenue - non-current	1,155	1,742
Flights - Prepaid Blocks
Disaggregation of Revenue [Line Items]
Deferred revenue - total	651,458	1,023,985
Memberships - annual dues
Disaggregation of Revenue [Line Items]
Deferred revenue - total	35,935	43,970
Memberships - initiation fees
Disaggregation of Revenue [Line Items]
Deferred revenue - total	2,804	3,899
Flights - credits
Disaggregation of Revenue [Line Items]
Deferred revenue - total	1,773	4,246
Other
Disaggregation of Revenue [Line Items]
Deferred revenue - total	$ 399	$ 775

REVENUE RECOGNITION - Changes i

REVENUE RECOGNITION - Changes in Deferred Revenue (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Contract with Customer, Liability [Roll Forward]
Deferred revenue as of December 31, 2022	$ 1,076,875
Amounts deferred during the period	342,923
Revenue recognized from amounts included in the deferred revenue beginning balance	(571,211)
Revenue from current period sales	(156,218)
Deferred revenue as of September 30, 2023	$ 692,369

REVENUE RECOGNITION - Schedul_4

REVENUE RECOGNITION - Schedule of Revenue Expected to be Recognized in Future Periods (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized in future periods	$ 692,369
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized in future periods	$ 113,830
Revenue recognition periods (in years)	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized in future periods	$ 292,149
Revenue recognition periods (in years)	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized in future periods	$ 143,268
Revenue recognition periods (in years)	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized in future periods	$ 143,122
Revenue recognition periods (in years)	1 year

PROPERTY AND EQUIPMENT - Schedu

PROPERTY AND EQUIPMENT - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 628,553	$ 656,590
Less: Accumulated depreciation and amortization	(266,500)	(262,031)
Total	362,053	394,559
Aircraft
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	509,984	566,338
Software development costs
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	80,582	65,303
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	22,274	11,930
Computer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,447	3,014
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,424	1,424
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,311	3,208
Tooling
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,180	3,835
Vehicles
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 2,351	$ 1,538

PROPERTY AND EQUIPMENT - Narrat

PROPERTY AND EQUIPMENT - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 10	$ 10.6	$ 28.8	$ 30.3
Software development costs
Property, Plant and Equipment [Line Items]
Amortization	$ 4.4	$ 3.6	$ 11.2	$ 9

ACQUISITIONS AND DIVESTITURES -

ACQUISITIONS AND DIVESTITURES - Narrative (Details) $ in Thousands				3 Months Ended	9 Months Ended
	Sep. 30, 2023 USD ($)	Apr. 01, 2022 USD ($) location continent	Feb. 03, 2022 USD ($) aircraft	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)
Business Acquisition [Line Items]
Loss on divestiture	$ (2,991)			$ 0	$ (2,991)	$ 0
Proceeds from sale of divested business, net					$ 13,200	$ 0
Discontinued Operations, Disposed of by Sale | Circadian Aviation LLC
Business Acquisition [Line Items]
Sale of issued and outstanding equity interests	100%				100%
Loss on divestiture	$ (3,000)
Aggregate consideration transferred	19,100				$ 19,100
Proceeds from sale of divested business, net	13,200
Non-contingent consideration receivable	500				500
Discontinued Operations, Disposed of by Sale | Circadian Aviation LLC | Escrow Receivable
Business Acquisition [Line Items]
Fair value of contingent consideration	600				600
Discontinued Operations, Disposed of by Sale | Circadian Aviation LLC | Contingent Consideration
Business Acquisition [Line Items]
Fair value of contingent consideration	$ 4,800				$ 4,800
Alante Air
Business Acquisition [Line Items]
Consideration transferred			$ 15,500
Number of jets | aircraft			12
Acquisition related fees			$ 500
Cash			3,000
Accounts receivables			1,400
Alante Air | Eliminated in consolidation upon acquisition
Business Acquisition [Line Items]
Accounts receivables			$ (15)
Air Partner
Business Acquisition [Line Items]
Consideration transferred		$ 108,200
Cash		18,000
Accounts receivables		$ 16,600
Number of operating location | location		18
Operating continents | continent		4

ACQUISITIONS AND DIVESTITURES_2

ACQUISITIONS AND DIVESTITURES - Preliminary Purchase Price (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Apr. 01, 2022	Feb. 03, 2022
Business Acquisition [Line Items]
Goodwill	$ 214,808	$ 348,118
Alante Air
Business Acquisition [Line Items]
Current assets				$ 4,452
Goodwill				13,069
Other assets				22,048
Total assets acquired				39,569
Total liabilities assumed				(24,101)
Net assets acquired				$ 15,468
Air Partner
Business Acquisition [Line Items]
Current assets			$ 49,617
Property and equipment, net			2,012
Operating lease right-of-use assets			2,780
Goodwill			83,910
Intangible assets			20,921
Restricted cash			27,507
Other assets			1,686
Total assets acquired			188,433
Total liabilities assumed			(80,239)
Net assets acquired			$ 108,194

ACQUISITIONS AND DIVESTITURES_3

ACQUISITIONS AND DIVESTITURES - Intangible Assets Acquired (Details) - Air Partner $ in Thousands	Apr. 01, 2022 USD ($)
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 20,921
Weighted-Average Amortization Period (Years)	5 years 1 month 6 days
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 16,521
Weighted-Average Amortization Period (Years)	5 years 8 months 12 days
Backlog
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 1,458
Weighted-Average Amortization Period (Years)	1 year 6 months
Trade name
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 1,931
Weighted-Average Amortization Period (Years)	1 year 10 months 24 days
Developed technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 1,011
Weighted-Average Amortization Period (Years)	5 years 9 months 18 days

ACQUISITIONS AND DIVESTITURES_4

ACQUISITIONS AND DIVESTITURES - Unaudited Pro Forma Summary of Operations (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) $ / shares
Business Combination and Asset Acquisition [Abstract]
Net revenue	$ 1,209,321
Net loss	(266,628)
Net loss attributable to Wheels Up Experience Inc.	$ (266,628)
Net loss per share, basic (in dollars per share) | $ / shares	$ (10.98)
Net loss per share, diluted (in dollars per share) | $ / shares	$ (10.98)

GOODWILL AND INTANGIBLE ASSET_2

GOODWILL AND INTANGIBLE ASSETS - Schedule of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Goodwill [Roll Forward]
Balance as of December 31, 2022				$ 348,118
Acquisitions				350
Impairment	$ (56,200)		$ (62,000)	(126,200)	$ (62,000)
Divestitures				(8,169)
Foreign currency translation adjustment				708
Balance as of September 30, 2023	214,808			214,808		$ 348,118
Impairment	56,200		$ 62,000	126,200	$ 62,000
WUP Legacy
Goodwill [Roll Forward]
Balance as of December 31, 2022				270,467
Acquisitions				0
Impairment	(56,200)	$ (70,000)		(126,200)		(180,000)
Divestitures				(8,169)
Foreign currency translation adjustment				0
Balance as of September 30, 2023	136,098			136,098		270,467
Impairment	56,200	$ 70,000		126,200		180,000
Air Partner
Goodwill [Roll Forward]
Balance as of December 31, 2022				77,651
Acquisitions				350
Impairment				0
Divestitures				0
Foreign currency translation adjustment				708
Balance as of September 30, 2023	$ 78,710			78,710		$ 77,651
Impairment				$ 0

GOODWILL AND INTANGIBLE ASSET_3

GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 203,626	$ 208,444
Accumulated Amortization	80,843	66,679
Net Carrying Value	122,783	141,765
Status
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	80,000	80,000
Accumulated Amortization	29,644	23,644
Net Carrying Value	50,356	56,356
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	89,121	91,121
Accumulated Amortization	32,226	24,613
Net Carrying Value	56,895	66,508
Non-competition agreement
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		210
Accumulated Amortization		210
Net Carrying Value		0
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	13,161	16,161
Accumulated Amortization	6,321	8,294
Net Carrying Value	6,840	7,867
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	20,556	20,556
Accumulated Amortization	11,580	9,332
Net Carrying Value	8,976	11,224
Leasehold interest - favorable
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	600	600
Accumulated Amortization	96	80
Net Carrying Value	504	520
Backlog
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	1,458	1,458
Accumulated Amortization	1,313	880
Net Carrying Value	145	578
Foreign currency translation adjustment
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	(1,480)	(1,662)
Accumulated Amortization	(547)	(374)
Net Carrying Value	$ (933)	$ (1,288)

GOODWILL AND INTANGIBLE ASSET_4

GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 6	$ 6.4	$ 17.8	$ 18.1
Amortization of intangible liabilities	$ 0.5	$ 0.5	$ 1.5	$ 1.5

GOODWILL AND INTANGIBLE ASSET_5

GOODWILL AND INTANGIBLE ASSETS - Intangible Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Gross Carrying Value	$ 20,000	$ 20,000
Accumulated Amortization	7,417	5,917
Net Carrying Value	$ 12,583	$ 14,083

GOODWILL AND INTANGIBLE ASSET_6

GOODWILL AND INTANGIBLE ASSETS - Future Amortization (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Intangible Assets
2023 (remaining)	$ 5,865
2024	22,759
2025	22,345
2026	21,486
2027	17,018
2028 and Thereafter	33,310
Net Carrying Value	122,783	$ 141,765
Intangible Liabilities
2023 (remaining)	500
2024	2,000
2025	2,000
2026	2,000
2027	2,000
2028 and Thereafter	4,083
Net Carrying Value	$ 12,583	$ 14,083

CASH EQUIVALENTS AND RESTRICT_3

CASH EQUIVALENTS AND RESTRICTED CASH - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Cash and Cash Equivalents [Line Items]
Cash equivalents	$ 0.1	$ 430.3
Standby Letter Of Credit
Cash and Cash Equivalents [Line Items]
Restricted cash	6.2	6.2
Credit Card Programs | Collateral against credit card programs
Cash and Cash Equivalents [Line Items]
Restricted cash	3.4	3.4
Contractual Restrictions
Cash and Cash Equivalents [Line Items]
Restricted cash	$ 19.7	$ 26.3

CASH EQUIVALENTS AND RESTRICT_4

CASH EQUIVALENTS AND RESTRICTED CASH - Reconciliation of Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Cash and Cash Equivalents [Abstract]
Cash and cash equivalents	$ 244,847	$ 585,881
Restricted cash	29,315	34,272
Total	$ 274,162	$ 620,153	$ 311,914	$ 786,722

LONG-TERM DEBT - Schedule of Lo

LONG-TERM DEBT - Schedule of Long-term Debt Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 20, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total debt	$ 583,582		$ 270,000
Less: Total unamortized deferred financing costs and debt discount	322,926		16,760
Less: Current maturities of long-term debt	25,227		27,006
Long-term debt	$ 235,429		226,234
Notes Payable | Equipment Notes
Debt Instrument [Line Items]
Weighted Average Interest Rate	12%
Total debt	$ 232,610		270,000
Term Loan and Revolving Credit Facility | Credit Agreement | Term loan
Debt Instrument [Line Items]
Weighted Average Interest Rate	10%
Total debt	$ 350,972	$ 41,400	$ 0

LONG-TERM DEBT - Schedule of Ma

LONG-TERM DEBT - Schedule of Maturities of Long-term Debt (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Debt Disclosure [Abstract]
Remainder of 2023	$ 6,307
2024	25,227
2025	43,916
2026	38,907
2027	33,258
2028 and Thereafter	435,967
Total	$ 583,582

LONG-TERM DEBT - Narrative (Det

LONG-TERM DEBT - Narrative (Details)				3 Months Ended		9 Months Ended
	Sep. 20, 2023 USD ($) instrument shares	Sep. 15, 2023	Oct. 14, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) aircraft	Sep. 30, 2022 USD ($)	Aug. 08, 2023 USD ($)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Number of aircraft | aircraft						1,500
Amortization of deferred financing costs and debt discount						$ 2,390,000	$ 0
Net proceeds						343,000,000	0
Number of instruments | instrument	3
Initial carrying value				$ 583,582,000		583,582,000			$ 270,000,000
Interest expense				11,258,000	$ 0	27,035,000	$ 0
Long-term debt, fair value									270,000,000
Term loan
Debt Instrument [Line Items]
Long-term debt, fair value	$ 44,900,000			268,400,000		268,400,000
Deferred Issuance
Debt Instrument [Line Items]
Common stock issued (in shares) | shares	529,926,270
Percentage of issued and outstanding shares of Common Stock on a fully diluted basis		95%
Allocation on relative fair value basis	$ 240,900,000
Deferred issuance costs	18,300,000
Term Loan
Debt Instrument [Line Items]
Deferred issuance costs	3,400,000
Initial Issuance
Debt Instrument [Line Items]
Percentage of issued and outstanding shares of Common Stock on a fully diluted basis		80%
Allocation on relative fair value basis	64,200,000
Deferred issuance costs	$ 4,900,000
Initial Issuance | Common Stock
Debt Instrument [Line Items]
Common stock issued (in shares) | shares	141,313,671
Equipment Notes | Notes Payable
Debt Instrument [Line Items]
Face amount			$ 270,000,000
Stated rate			12%
Net proceeds			$ 259,200,000
Annual amortization of principal percent			10%
Minimum liquidity	$ 75,000,000		$ 125,000,000
Minimum aggregate available cash and Cash Equivalents	75,000,000
Debt redeemed				17,400,000		17,400,000
Amortization of deferred financing costs and debt discount				300,000		2,700,000
Initial carrying value				232,610,000		$ 232,610,000			270,000,000
Equipment Notes | Notes Payable | Not subject to first-priority liens
Debt Instrument [Line Items]
Number of aircraft | aircraft						7
Equipment Notes | Notes Payable | Subject to first-priority liens
Debt Instrument [Line Items]
Number of aircraft | aircraft						127
Flight equipment				300,200,000		$ 300,200,000
Equipment Notes | Notes Payable | Aircraft
Debt Instrument [Line Items]
Number of aircraft | aircraft						127
Delta Promissory Note | Notes Payable
Debt Instrument [Line Items]
Stated rate								10%
Aggregate principal amount								$ 70,000,000
Credit Agreement
Debt Instrument [Line Items]
Issuance costs	26,600,000
Credit Agreement | General and administrative
Debt Instrument [Line Items]
Issuance costs	4,900,000
Credit Agreement | Term Loan and Revolving Credit Facility | Term loan
Debt Instrument [Line Items]
Face amount	$ 350,000,000
Stated rate	10%
Amortization of deferred financing costs and debt discount						$ (300,000)
Net proceeds	$ 343,000,000
Increment principal amount	$ 50,000,000
Interest rate if not consummated	20%
Credit agreement interest rate	2%
Initial carrying value	$ 41,400,000			350,972,000		$ 350,972,000			$ 0
Unamortized debt issuance costs	3,400,000
Unamortized debt discount	305,200,000
Interest expense				$ (300,000)
Credit Agreement | Term Loan and Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Aggregate original principal amount	$ 100,000,000

FAIR VALUE MEASUREMENTS - Sched

FAIR VALUE MEASUREMENTS - Schedule of Financial Instruments Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 20, 2023	Dec. 31, 2022
Assets:
Assets	$ 89		$ 430,326
Liabilities:
Warrant liability	66		751
Long-term debt, fair value			270,000
Total liabilities	538,267		270,751
Money market funds
Assets:
Assets	89		230,626
Treasury bills
Assets:
Assets			199,700
Public Warrants
Liabilities:
Warrant liability	42		479
Private Warrants
Liabilities:
Warrant liability	24		272
Equipment Notes
Liabilities:
Long-term debt, fair value	269,801
Term loan
Liabilities:
Long-term debt, fair value	268,400	$ 44,900
Level 1
Assets:
Assets	89		430,326
Liabilities:
Long-term debt, fair value			0
Total liabilities	42		479
Level 1 | Money market funds
Assets:
Assets	89		230,626
Level 1 | Treasury bills
Assets:
Assets			199,700
Level 1 | Public Warrants
Liabilities:
Warrant liability	42		479
Level 1 | Private Warrants
Liabilities:
Warrant liability	0		0
Level 1 | Equipment Notes
Liabilities:
Long-term debt, fair value	0
Level 1 | Term loan
Liabilities:
Long-term debt, fair value	0
Level 2
Assets:
Assets	0		0
Liabilities:
Long-term debt, fair value			270,000
Total liabilities	24		270,272
Level 2 | Money market funds
Assets:
Assets	0		0
Level 2 | Treasury bills
Assets:
Assets			0
Level 2 | Public Warrants
Liabilities:
Warrant liability	0		0
Level 2 | Private Warrants
Liabilities:
Warrant liability	24		272
Level 2 | Equipment Notes
Liabilities:
Long-term debt, fair value	0
Level 2 | Term loan
Liabilities:
Long-term debt, fair value	0
Level 3
Assets:
Assets	0		0
Liabilities:
Long-term debt, fair value			0
Total liabilities	538,201		0
Level 3 | Money market funds
Assets:
Assets	0		0
Level 3 | Treasury bills
Assets:
Assets			0
Level 3 | Public Warrants
Liabilities:
Warrant liability	0		0
Level 3 | Private Warrants
Liabilities:
Warrant liability	0		$ 0
Level 3 | Equipment Notes
Liabilities:
Long-term debt, fair value	269,801
Level 3 | Term loan
Liabilities:
Long-term debt, fair value	$ 268,400

FAIR VALUE MEASUREMENTS - Chang

FAIR VALUE MEASUREMENTS - Changes in the Fair Value of the Warrant Liability (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value as of December 31, 2022	$ 751
Change in fair value of warrant liability	(685)
Fair value as of September 30, 2023	66
Public Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value as of December 31, 2022	479
Change in fair value of warrant liability	(437)
Fair value as of September 30, 2023	$ 42
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Change in fair value of warrant liability
Private Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value as of December 31, 2022	$ 272
Change in fair value of warrant liability	(248)
Fair value as of September 30, 2023	$ 24
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Change in fair value of warrant liability

LEASES - Components of Net Leas

LEASES - Components of Net Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Operating lease costs	$ 9,313	$ 9,789	$ 30,648	$ 28,614
Short-term lease costs	2,039	8,086	6,676	22,600
Variable lease costs	10,519	3,563	25,018	12,516
Total lease costs	$ 21,871	$ 21,438	$ 62,342	$ 63,730

LEASES - Supplemental Cash Flow

LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash paid for amounts included in the measurement of operating lease liabilities:
Operating cash flows paid for operating leases	$ 28,318	$ 28,865
Right-of-use assets obtained in exchange for operating lease obligations	$ 5,742	$ 46,916

LEASES - Supplemental Balance S

LEASES - Supplemental Balance Sheet Information (Details)	Sep. 30, 2023	Sep. 30, 2022
Weighted-average remaining lease term (in years):
Operating leases	6 years 8 months 12 days	5 years 10 months 24 days
Weighted-average discount rate:
Operating leases	9.10%	9%

LEASES - Maturities of Operatin

LEASES - Maturities of Operating Leases (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Leases [Abstract]
2023 (remaining)	$ 8,159
2024	28,522
2025	16,993
2026	9,826
2027	7,520
2028 and Thereafter	43,090
Total lease payments	114,110
Less: Imputed interest	(31,561)
Total lease obligations	$ 82,549

STOCKHOLDER_S EQUITY AND EQUI_3

STOCKHOLDER’S EQUITY AND EQUITY-BASED COMPENSATION - Narrative (Details)		3 Months Ended		9 Months Ended
	Sep. 20, 2023 USD ($) shares	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) plan day tranche $ / shares shares	Sep. 30, 2022 USD ($)	Jun. 07, 2023 vote $ / shares shares	Jun. 06, 2023 shares	May 31, 2023 shares	Dec. 31, 2022 shares	Jun. 30, 2022 shares	Jul. 13, 2021 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized (in shares)		250,000,000		250,000,000		250,000,000	2,500,000,000		250,000,000
Preferred stock authorized (in shares)						25,000,000
Preferred stock par value (in dollars per share) | $ / shares						$ 0.0001
Warrants, exercise price (in dollars per share) | $ / shares		$ 115		$ 115		$ 115					$ 115
Number of approved plans | plan				9
Compensation expense | $		$ 3,508,000	$ 22,504,000	$ 21,650,000	$ 65,839,000
Shares withheld for employee taxes on vested equity (in shares)				275,707
Warrant right to purchase shares (in shares)		0.1		0.1				0.1			0.1
CK Wheels LLC
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Voting restrictions						19.90%
Delta
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Voting restrictions						29.90%
Private Placement
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued (in shares)	141,313,671
Percentage of shares issued and outstanding	80%
Gross proceeds | $	$ 64,200,000
Issuance costs | $	$ 4,900,000
Additional shares (in shares)	529,926,270
Deferred Issuance
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued (in shares)	529,926,270
Gross proceeds | $	$ 240,900,000
Issuance costs | $	$ 18,300,000
WUP Profits Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining contractual term (in years)				7 years 9 months 18 days
Granted (in shares)				0
Compensation expense | $		$ 0	200,000	$ 100,000	1,100,000
Nonvested awards (in shares)		0		0					170,000
WUP Restricted Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense | $		$ 0		$ 0	400,000
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense | $		200,000	1,300,000	1,100,000	5,500,000
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation | $		300,000		300,000
Earnout Share
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense | $		$ 0	9,700,000	$ 1,400,000	28,800,000
Nonvested awards (in shares)		900,000		900,000
Earnout Share | Vesting period one
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards (in shares)		3,000,000		3,000,000
Earnout Share | Vesting period two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards (in shares)		3,000,000		3,000,000
Earnout Share | Vesting period three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested awards (in shares)		3,000,000		3,000,000
Profit Interest Based Award and Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining contractual term (in years)				1 year 8 months 12 days
Compensation expense | $				$ 57,900,000
Market-based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting condition, threshold consecutive trading days | day				30
RSUs, PSUs, and Market-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense | $		$ 3,300,000	$ 11,200,000	$ 15,200,000	$ 29,900,000
2021 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)		5,200,000		5,200,000		2,415,000	24,150,000
2021 LTIP | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value | $		$ 0		$ 0
Weighted average remaining contractual term, outstanding (in years)				4 years 1 month 6 days
Weighted average remaining contractual term, exercisable (in years)				4 years 1 month 6 days
2021 LTIP | PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)				145,000
Nonvested awards (in shares)		165,000		165,000					96,000
2021 LTIP | RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)				2,297,000
Unrecognized compensation cost recognition period (in years)				1 year 7 months 6 days
Unrecognized compensation | $		$ 20,500,000		$ 20,500,000
Nonvested awards (in shares)		2,681,000		2,681,000					1,617,000
2022 Inducement Grant Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Inducement grant plan (in shares)						205,128				2,051,282
MIP Plan VII | WUP Profits Interests
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)		3,100,000		3,100,000
WUP Stock Option Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized (in shares)		1,800,000		1,800,000
Aggregate intrinsic value | $		$ 0		$ 0
Weighted average remaining contractual term, outstanding (in years)				5 years 9 months 18 days
Weighted average remaining contractual term, exercisable (in years)				5 years 9 months 18 days
Common Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized (in shares)						250,000,000	2,500,000,000
Voting rights per share | vote						1
Common Class A | Earnout Share | Vesting period one
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equal tranches | tranche				3
Vesting milestone (in dollars per share) | $ / shares		$ 125		$ 125
Minimum threshold days (in days)				20 days
Number of consecutive trading days (in days)				30 days
Common Class A | Earnout Share | Vesting period two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting milestone (in dollars per share) | $ / shares		150		$ 150
Common Class A | Earnout Share | Vesting period three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting milestone (in dollars per share) | $ / shares		$ 175		$ 175
Common Class A | WUP Stock Option Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock exercisable for each outstanding stock option (in shares)		1		1

STOCKHOLDER_S EQUITY AND EQUI_4

STOCKHOLDER’S EQUITY AND EQUITY-BASED COMPENSATION - Summary of Profits Interest Activity (Details) - WUP Profits Interests shares in Thousands	9 Months Ended
	Sep. 30, 2023 $ / shares shares
Number of RSUs
Beginning balance (in shares) | shares	2,881
Granted (in shares) | shares	0
Exchanged (in shares) | shares	0
Expired/forfeited (in shares) | shares	0
Ending balance (in shares) | shares	2,881
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 4.16
Granted (in dollars per share) | $ / shares	0
Exchanged (in dollars per share) | $ / shares	0
Expired/forfeited (in dollars per share) | $ / shares	0
Ending balance (in dollars per share) | $ / shares	$ 4.16

STOCKHOLDER_S EQUITY AND EQUI_5

STOCKHOLDER’S EQUITY AND EQUITY-BASED COMPENSATION - Schedule of Nonvested Profit Interests (Details) - WUP Profits Interests shares in Thousands	9 Months Ended
	Sep. 30, 2023 $ / shares shares
Number of WUP Profits Interests
Beginning balance (in shares) | shares	170
Granted (in shares) | shares	0
Vested (in shares) | shares	(170)
Forfeited (in shares) | shares	0
Ending balance (in shares) | shares	0
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 4.19
Granted (in dollars per share) | $ / shares	0
Vested (in dollars per share) | $ / shares	4.19
Forfeited (in dollars per share) | $ / shares	0
Ending balance (in dollars per share) | $ / shares	$ 0

STOCKHOLDER_S EQUITY AND EQUI_6

STOCKHOLDER’S EQUITY AND EQUITY-BASED COMPENSATION - Summary of Stock Option Activity (Details) - Stock options - $ / shares shares in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
WUP Stock Option Plan
Number of WUP Stock Options
Beginning balance (in shares)	1,280
Granted (in shares)	0
Exercised (in shares)	0
Forfeited (in shares)	(78)
Expired (in shares)	(10)
Ending balance (in shares)	1,192
Exercisable (in shares)	1,192
Weighted- Average Exercise Price
Beginning balance (in dollars per share)	$ 75.10
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	71.63
Expired (in dollars per share)	72.71
Ending balance (in dollars per share)	75.35
Exercisable (in dollars per share)	75.35
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share)	12.38	$ 12.02
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	7.34
Expired (in dollars per share)	6.74
Ending balance (in dollars per share)	12.38
Exercisable (in dollars per share)	$ 12.38
2021 LTIP
Number of WUP Stock Options
Beginning balance (in shares)	77
Granted (in shares)	0
Exercised (in shares)	0
Forfeited (in shares)	0
Expired (in shares)	0
Ending balance (in shares)	77
Exercisable (in shares)	77
Weighted- Average Exercise Price
Beginning balance (in dollars per share)	$ 100
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	0
Expired (in dollars per share)	0
Ending balance (in dollars per share)	100
Exercisable (in dollars per share)	100
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share)	47.52	$ 47.52
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	0
Expired (in dollars per share)	0
Ending balance (in dollars per share)	47.52
Exercisable (in dollars per share)	$ 47.52

STOCKHOLDER_S EQUITY AND EQUI_7

STOCKHOLDER’S EQUITY AND EQUITY-BASED COMPENSATION - Schedule of Nonvested Share Activity (Details) - Stock options shares in Thousands	9 Months Ended
	Sep. 30, 2023 $ / shares shares
WUP Stock Option Plan
Number of Stock Option
Beginning balance (in shares) | shares	104
Granted (in shares) | shares	0
Vested (in shares) | shares	(102)
Expired (in shares) | shares	0
Forfeited (in shares) | shares	(2)
Ending balance (in shares) | shares	0
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 19.95
Granted (in dollars per share) | $ / shares	0
Vested, (in dollars per share) | $ / shares	20.03
Expired (in dollars per share) | $ / shares	0
Forfeited (in dollars per share) | $ / shares	16.01
Ending balance (in dollars per share) | $ / shares	$ 0
2021 LTIP
Number of Stock Option
Granted (in shares) | shares	0
Weighted-Average Grant Date Fair Value
Granted (in dollars per share) | $ / shares	$ 0

STOCKHOLDER_S EQUITY AND EQUI_8

STOCKHOLDER’S EQUITY AND EQUITY-BASED COMPENSATION - Schedule of LTIP RSUs (Details) - 2021 LTIP	9 Months Ended
	Sep. 30, 2023 $ / shares shares
RSUs
Number of RSUs
Beginning balance (in shares)	1,617,000
Granted (in shares)	2,297,000
Vested (in shares)	(584,000)
Forfeited (in shares)	(649,000)
Ending balance (in shares)	2,681,000
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 34.64
Granted (in dollars per share) | $ / shares	2.69
Vested (in dollars per share) | $ / shares	35.25
Forfeited (in dollars per share) | $ / shares	22.28
Ending balance (in dollars per share) | $ / shares	$ 10.12
RSUs | July 2022
Number of RSUs
Granted (in shares)	205,128
Vested (in shares)	(68,376)
Ending balance (in shares)	136,752
PSUs
Number of RSUs
Beginning balance (in shares)	96,000
Granted (in shares)	145,000
Vested (in shares)	(32,000)
Forfeited (in shares)	(44,000)
Ending balance (in shares)	165,000
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 21.68
Granted (in dollars per share) | $ / shares	2.93
Vested (in dollars per share) | $ / shares	12.19
Forfeited (in dollars per share) | $ / shares	15.19
Ending balance (in dollars per share) | $ / shares	$ 8.71

STOCKHOLDER_S EQUITY AND EQUI_9

STOCKHOLDER’S EQUITY AND EQUITY-BASED COMPENSATION - Performance Stock Units (Details) - 2021 LTIP shares in Thousands	9 Months Ended
	Sep. 30, 2023 $ / shares shares
PSUs
Number of RSUs
Beginning balance (in shares)	96
Granted (in shares)	145
Vested (in shares)	(32)
Forfeited (in shares)	(44)
Ending balance (in shares)	165
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 21.68
Ending balance (in dollars per share) | $ / shares	$ 8.71
PSUs | Minimum | First share price vesting threshold
Weighted-Average Grant Date Fair Value
Level of performance	0%
PSUs | Minimum | Second share price vesting threshold
Weighted-Average Grant Date Fair Value
Level of performance	0%
PSUs | Maximum | First share price vesting threshold
Weighted-Average Grant Date Fair Value
Level of performance	120%
PSUs | Maximum | Second share price vesting threshold
Weighted-Average Grant Date Fair Value
Level of performance	200%
PSUs | Common Class A | First share price vesting threshold
Weighted-Average Grant Date Fair Value
Shares that may settle into Class A common stock (in shares)	84
PSUs | Common Class A | Second share price vesting threshold
Weighted-Average Grant Date Fair Value
Shares that may settle into Class A common stock (in shares)	106
Stock options
Weighted-Average Grant Date Fair Value
Granted (in dollars per share) | $ / shares	$ 0
RSUs
Number of RSUs
Beginning balance (in shares)	1,617
Granted (in shares)	2,297
Vested (in shares)	(584)
Forfeited (in shares)	(649)
Ending balance (in shares)	2,681
Weighted-Average Grant Date Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 34.64
Ending balance (in dollars per share) | $ / shares	$ 10.12

STOCKHOLDER_S EQUITY AND EQU_10

STOCKHOLDER’S EQUITY AND EQUITY-BASED COMPENSATION - Equity-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total equity-based compensation expense	$ 3,508	$ 22,504	$ 21,650	$ 65,839
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total equity-based compensation expense	826	3,581	3,097	11,320
Technology and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total equity-based compensation expense	620	751	1,777	2,047
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total equity-based compensation expense	440	2,756	1,781	8,314
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total equity-based compensation expense	$ 1,622	$ 15,416	$ 14,995	$ 44,158

WARRANTS (Details)

WARRANTS (Details) - $ / shares	Sep. 25, 2021	Sep. 30, 2023	Jun. 07, 2023	May 31, 2023	Jul. 13, 2021	Jul. 12, 2021
Class of Warrant or Right [Line Items]
Warrants outstanding (in shares)		12,521,494
Warrant right to purchase shares (in shares)		0.1		0.1	0.1
Warrants, exercise price (in dollars per share)		$ 115	$ 115		$ 115
Warrants, exercisable, period after completion of Aspirational initial public offering (in months)	12 months
Warrants issued (in shares)		1,252,149
Public Warrants
Class of Warrant or Right [Line Items]
Warrants outstanding (in shares)						7,991,544
Private Warrants
Class of Warrant or Right [Line Items]
Warrants outstanding (in shares)						4,529,950

NON-CONTROLLING INTERESTS - Sch

NON-CONTROLLING INTERESTS - Schedule of Calculation of Non-controlling Interests (Details)	Sep. 30, 2023 shares	Dec. 31, 2022 shares
Noncontrolling Interest [Abstract]
Number of WUP common units held by Wheels Up (in shares)	166,804,743	24,933,857
Number of vested WUP profits interests attributable to non-controlling interests (in shares)	0	0
Total WUP common units and vested WUP profits interests outstanding (in shares)	166,804,743	24,933,857
Number of WUP common units held by Wheels Up	1	1
Number of vested WUP profits interests attributable to non-controlling interests	0	0
Total WUP common units and vested WUP profits interests outstanding	1	1
Units issuable upon conversion of vested and unvested profits interests (in shares)	0

NON-CONTROLLING INTERESTS - Nar

NON-CONTROLLING INTERESTS - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Noncontrolling Interest [Abstract]
Weighted average ownership percentage by parent (as a percent)	0	0	0	0

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Sales and excise tax payable	$ 10.6	$ 10.4

RELATED PARTIES (Details)

RELATED PARTIES (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Costs and Expenses	$ 449,068,000	$ 572,018,000	$ 1,385,579,000	$ 1,510,007,000
Incurred expenses in Accrued expenses	100,814,000		100,814,000		$ 148,947,000
Other non-current liabilities	17,873,000		17,873,000		15,603,000
Related Party
Related Party Transaction [Line Items]
Costs and Expenses	400,000	$ 100,000	1,500,000	$ 1,500,000
Incurred expenses in Accrued expenses	400,000		400,000		2,400,000
Other non-current liabilities	$ 4,600,000		$ 4,600,000		$ 0

RESTRUCTURING AND RELATED CHA_3

RESTRUCTURING AND RELATED CHARGES - Narrative (Details) - March 2023 Restructuring Plan - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2022	Jun. 30, 2023	Sep. 30, 2023	Mar. 01, 2023
Restructuring Cost and Reserve [Line Items]
Pre tax charges				$ 14,000
Restructuring charges			$ 17,700
Total restructuring expenses	$ 7,200	$ 10,520

RESTRUCTURING AND RELATED CHA_4

RESTRUCTURING AND RELATED CHARGES - Schedule of Restructuring and Related Costs (Details) - March 2023 Restructuring Plan - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2022	Jun. 30, 2023
Restructuring Cost and Reserve [Line Items]
Total restructuring expenses	$ 7,200	$ 10,520
Cost of revenue
Restructuring Cost and Reserve [Line Items]
Total restructuring expenses		755
Technology and development
Restructuring Cost and Reserve [Line Items]
Total restructuring expenses		2,299
Sales and marketing
Restructuring Cost and Reserve [Line Items]
Total restructuring expenses		2,058
General and administrative
Restructuring Cost and Reserve [Line Items]
Total restructuring expenses		$ 5,408

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income tax expense	$ 579	$ 185	$ 751	$ 505
Effective income tax rate	(0.40%)	(0.10%)	(0.40%)	(0.20%)

NET LOSS PER SHARE - Schedule o

NET LOSS PER SHARE - Schedule of Basic and Diluted Net Income (Loss) per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net loss attributable to Wheels Up Experience Inc. - basic	$ (144,813,000)	$ (148,838,000)	$ (406,272,000)	$ (330,250,000)
Net loss attributable to Wheels Up Experience Inc. - diluted	$ (144,813,000)	$ (148,838,000)	$ (406,272,000)	$ (330,250,000)
Denominator:
Weighted-average shares of Class A common stock outstanding - basic (in shares)	41,261,003	24,435,096	30,737,324	24,434,787
Weighted-average shares of Class A common stock outstanding - diluted (in shares)	41,261,003	24,435,096	30,737,324	24,434,787
Basic net loss per share of Class A common stock (in dollars per share)	$ (3.51)	$ (6.09)	$ (13.22)	$ (13.52)
Diluted net loss per share of Class A common stock (in dollars per share)	$ (3.51)	$ (6.09)	$ (13.22)	$ (13.52)
Dividends declared	$ 0	$ 0	$ 0	$ 0

NET LOSS PER SHARE - Schedule_2

NET LOSS PER SHARE - Schedule of Antidilutive Securities (Details) - $ / shares	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Jun. 07, 2023	May 31, 2023	Jul. 13, 2021
Earnings Per Share [Abstract]
Warrants, exercise price (in dollars per share)	$ 115		$ 115		$ 115
Warrant right to purchase shares (in shares)	0.1			0.1	0.1
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)	6,530,556	6,000,003
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)	1,252,149	1,252,149
Earnout Shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)	900,000	900,000
RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)	3,109,823	2,432,789
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)	1,268,584	1,415,066