Related Parties (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($) aircraft	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) aircraft	Jun. 30, 2022 USD ($)
Related Party Transaction [Line Items]
Management fees, expense reimbursements, and director compensation (less than) | $	$ 1	$ 1	$ 1	$ 1
Related Party | Controladora Vuela Compañía de Aviación, S.A.B. de C.V. | Indigo Partners
Related Party Transaction [Line Items]
Outstanding shares of common stock held (as a percentage)	18.00%		18.00%
Controladora Vuela Compañía de Aviación, S.A.B. de C.V. | Related Party
Related Party Transaction [Line Items]
Number of company directors	2		2
Number of alternate company directors	1		1