Commitments and Contingencies - Schedule of Contractual Commitments to Acquire Aircraft (Details)	3 Months Ended
	Mar. 31, 2026 aircraft
Aircrafts
Long-term Purchase Commitment [Line Items]
Last 9 months of 2026	41
2027	68
2028	50
2029	42
2030	0
Thereafter	5
Total	206
Airbus A220-100/300
Long-term Purchase Commitment [Line Items]
Last 9 months of 2026	1
2027	8
2028	14
2029	8
2030	0
Thereafter	0
Total	31
Airbus A320/321neo
Long-term Purchase Commitment [Line Items]
Last 9 months of 2026	18
2027	38
2028	34
2029	34
2030	0
Thereafter	0
Total	124
Number of long-range variant aircraft	13
Number of extra long-range variant aircrafts	48
Airbus A330-900neo
Long-term Purchase Commitment [Line Items]
Last 9 months of 2026	1
2027	0
2028	0
2029	0
2030	0
Thereafter	0
Total	1
Boeing 737-8/9 MAX
Long-term Purchase Commitment [Line Items]
Last 9 months of 2026	16
2027	21
2028	2
2029	0
2030	0
Thereafter	5
Total	44
Boeing 787-9/10
Long-term Purchase Commitment [Line Items]
Last 9 months of 2026	5
2027	1
2028	0
2029	0
2030	0
Thereafter	0
Total	6