Commitments and Contingencies - Schedule of Contractual Commitments to Acquire Aircraft (Details)	3 Months Ended
	Mar. 31, 2024 aircraft
Aircrafts
Long-term Purchase Commitment [Line Items]
Last 9 months of 2024	70
2025	60
2026	67
2027	78
2028	40
Thereafter	5
Total	320
Airbus A220-100/300
Long-term Purchase Commitment [Line Items]
Last 9 months of 2024	16
2025	11
2026	15
2027	17
2028	0
Thereafter	0
Total	59
Airbus A320/321neo
Long-term Purchase Commitment [Line Items]
Last 9 months of 2024	14
2025	11
2026	30
2027	50
2028	36
Thereafter	4
Total	145
Number of long-range variant aircraft	7
Number of extra long-range variant aircrafts	49
Airbus A330-900neo
Long-term Purchase Commitment [Line Items]
Last 9 months of 2024	6
2025	1
2026	0
2027	0
2028	0
Thereafter	0
Total	7
Airbus A350-900/1000
Long-term Purchase Commitment [Line Items]
Last 9 months of 2024	3
2025	0
2026	0
2027	0
2028	0
Thereafter	0
Total	3
Airbus A350F
Long-term Purchase Commitment [Line Items]
Last 9 months of 2024	0
2025	0
2026	0
2027	4
2028	2
Thereafter	1
Total	7
Boeing 737-8/9 MAX
Long-term Purchase Commitment [Line Items]
Last 9 months of 2024	20
2025	27
2026	21
2027	7
2028	2
Thereafter	0
Total	77
Boeing 787-9/10
Long-term Purchase Commitment [Line Items]
Last 9 months of 2024	11
2025	10
2026	1
2027	0
2028	0
Thereafter	0
Total	22