previously deferred revenue of $16 million during Q2 2022. The amount of revenue deferred during Q2 2023 was driven by modified terms relating to fixed monthly cash payments under SkyWest’s previously announced amended flying contracts. See the “Other Supplemental Cash Flow Information” section of this release for more information. The remaining reduction in revenue was attributed to a decrease in block hour production in Q2 2023 compared to Q2 2022.
Operating expenses were $694 million in Q2 2023, down $16 million, or 2%, from $710 million in Q2 2022, driven by decreases in operating costs as a result of lower Q2 2023 block hour production compared to Q2 2022, partially offset by increases in employee compensation, including higher pilot pay scales.
Capital and Liquidity
SkyWest had $862 million in cash and marketable securities at June 30, 2023, down from $936 million at March 31, 2023 and $1.0 billion at December 31, 2022.
Total debt at June 30, 2023 was $3.2 billion, down from $3.3 billion at March 31, 2023 and $3.4 billion at December 31, 2022. Capital expenditures during Q2 2023 were $31 million for spare engines and other fixed assets.
Status Update on Previously Announced Agreements
SkyWest anticipates adding two E175 aircraft in Q4 2023 and one E175 aircraft in 2024 under a flying contract with Delta Air Lines. SkyWest also anticipates adding one E175 aircraft in 2025 under a flying contract with Alaska Airlines. Timing of future deliveries is subject to change.
By the end of 2025, SkyWest is scheduled to operate a total of 239 E175 aircraft.
About SkyWest
SkyWest, Inc. is the holding company for SkyWest Airlines and SkyWest Leasing, an aircraft leasing company. SkyWest Airlines has a fleet of approximately 500 aircraft connecting passengers to over 240 destinations throughout North America. SkyWest Airlines operates through partnerships with United Airlines, Delta Air Lines, American Airlines, and Alaska Airlines carrying more than 40 million passengers in 2022.
SkyWest will host its conference call to discuss its second quarter 2023 results today, July 27, 2023, at 2:30 p.m. Mountain Time. The conference call number is 1-888-330-2380 for domestic callers, and 1-240-789-2724 for international callers. Please call up to ten minutes in advance to ensure you are connected prior to the start of the call. The conference call will also be available live on the Internet at https://events.q4inc.com/attendee/393092687. This press release and additional information regarding SkyWest, including access information for the digital rebroadcast of the second quarter 2023 results call, participation at investor conferences and investor presentations can be accessed at inc.skywest.com.