| Document and Entity Information | Mar. 22, 2021 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001158463 |
| Document Type | 8-K |
| Document Period End Date | Mar. 22, 2021 |
| Entity Registrant Name | JETBLUE AIRWAYS CORP |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 000-49728 |
| Entity Tax Identification Number | 87-0617894 |
| Entity Address, Address Line One | 27-01 Queens Plaza North |
| Entity Address, City or Town | Long Island City |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 11101 |
| City Area Code | 718 |
| Local Phone Number | 286-7900 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.01 par value |
| Trading Symbol | JBLU |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
