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Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2020	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 516,476	$ 423,796	$ 1,573,041	$ 1,124,237
Credit Voucher Term Expiration	2 years
Scheduled service
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		254,545	195,225	775,740	552,765
Ancillary air-related charges
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		252,080	224,170	765,096	558,687
Loyalty redemptions
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		$ 9,851	$ 4,401	$ 32,205	$ 12,785

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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