v3.26.1
PROPERTY AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Changes in property, plant and equipment [abstract]    
Balance, beginning of period R$ 3,034,554  
Balance, end of period 2,772,299 R$ 3,034,554
Property and equipment    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 3,034,554 2,295,851
Acquisitions 350,730 1,306,618
Write-offs (619,343) (559,419)
Transfers 6,358 (8,496)
Balance, end of period 2,772,299 3,034,554
Property and equipment | Cost    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 4,600,128 3,848,701
Acquisitions 668,731 1,618,454
Write-offs (763,578) (858,531)
Transfers 6,358 (8,496)
Balance, end of period 4,511,639 4,600,128
Property and equipment | Cost | Aircraft parts and equipment    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 2,237,723  
Acquisitions 298,601  
Write-offs (83,982)  
Transfers 0  
Balance, end of period 2,452,342 2,237,723
Property and equipment | Cost | Maintenance materials and parts    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 2,133,015 2,036,144
Acquisitions   332,469
Write-offs   (191,944)
Transfers   (43,654)
Balance, end of period   2,133,015
Property and equipment | Cost | Non‑aircraft equipment    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 108,152  
Acquisitions 3,084  
Write-offs (4,040)  
Transfers 0  
Balance, end of period 107,196 108,152
Property and equipment | Cost | Equipments    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 212,860 195,810
Acquisitions   21,356
Write-offs   (5,124)
Transfers   818
Balance, end of period   212,860
Property and equipment | Cost | Aircraft, engines and simulators    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 384,282 593,953
Acquisitions 170,126 323,056
Write-offs (256,176) (533,279)
Transfers 3,502 552
Balance, end of period 301,734 384,282
Property and equipment | Cost | Improvements    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 660,624 555,412
Acquisitions 80,132 59,848
Write-offs (96,709) (24,445)
Transfers 6,358 69,809
Balance, end of period 650,405 660,624
Property and equipment | Cost | Maintenance    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 85,157 44,016
Acquisitions 0 75,692
Write-offs (52,175) (34,551)
Transfers 0 0
Balance, end of period 32,982 85,157
Property and equipment | Cost | Others    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 28,502 29,231
Acquisitions 585 2,877
Write-offs (2) (3,606)
Transfers 0 0
Balance, end of period 29,085 28,502
Property and equipment | Cost | Construction in progress    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 59,314 96,095
Acquisitions 10,924 64,822
Write-offs (14,029) (65,582)
Transfers (3,502) (36,021)
Balance, end of period 52,707 59,314
Property and equipment | Cost | Advance payments for acquisition of aircraft    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period 1,036,374 298,040
Acquisitions 105,279 738,334
Write-offs (256,465) 0
Transfers 0 0
Balance, end of period 885,188 1,036,374
Property and equipment | Depreciation    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period (1,565,574) (1,409,060)
Acquisitions (318,001) (311,836)
Write-offs 144,235 155,322
Transfers 0 0
Balance, end of period (1,739,340) (1,565,574)
Property and equipment | Depreciation | Aircraft parts and equipment    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period (974,169)  
Acquisitions (207,376)  
Write-offs 13,306  
Transfers 0  
Balance, end of period (1,168,239) (974,169)
Property and equipment | Depreciation | Maintenance materials and parts    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period (895,971) (785,204)
Acquisitions   (164,285)
Write-offs   53,518
Transfers   0
Balance, end of period   (895,971)
Property and equipment | Depreciation | Non‑aircraft equipment    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period (63,287)  
Acquisitions (11,210)  
Write-offs 614  
Transfers 0  
Balance, end of period (73,883) (63,287)
Property and equipment | Depreciation | Equipments    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period (141,485) (120,860)
Acquisitions   (25,310)
Write-offs   4,685
Transfers   0
Balance, end of period   (141,485)
Property and equipment | Depreciation | Aircraft, engines and simulators    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period (246,405) (271,104)
Acquisitions (23,073) (39,385)
Write-offs 70,424 64,084
Transfers 0 0
Balance, end of period (199,054) (246,405)
Property and equipment | Depreciation | Improvements    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period (233,508) (188,987)
Acquisitions (65,280) (68,273)
Write-offs 46,864 23,752
Transfers 0 0
Balance, end of period (251,924) (233,508)
Property and equipment | Depreciation | Maintenance    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period (26,031) (19,616)
Acquisitions (8,972) (12,101)
Write-offs 13,025 5,686
Transfers 0 0
Balance, end of period (21,978) (26,031)
Property and equipment | Depreciation | Others    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period (22,174) (23,289)
Acquisitions (2,090) (2,482)
Write-offs 2 3,597
Transfers 0 0
Balance, end of period R$ (24,262) R$ (22,174)
Property and equipment | Depreciation | Weighted rate | Aircraft parts and equipment    
Disclosure of detailed information about property and equipment [line items]    
Weighted average rate (p.a.) 9.00%  
Property and equipment | Depreciation | Weighted rate | Maintenance materials and parts    
Disclosure of detailed information about property and equipment [line items]    
Weighted average rate (p.a.)   8.00%
Property and equipment | Depreciation | Weighted rate | Non‑aircraft equipment    
Disclosure of detailed information about property and equipment [line items]    
Weighted average rate (p.a.) 10.00%  
Property and equipment | Depreciation | Weighted rate | Equipments    
Disclosure of detailed information about property and equipment [line items]    
Weighted average rate (p.a.)   13.00%
Property and equipment | Depreciation | Weighted rate | Aircraft, engines and simulators    
Disclosure of detailed information about property and equipment [line items]    
Weighted average rate (p.a.) 6.00% 7.00%
Property and equipment | Depreciation | Weighted rate | Improvements    
Disclosure of detailed information about property and equipment [line items]    
Weighted average rate (p.a.) 10.00% 12.00%
Property and equipment | Depreciation | Weighted rate | Maintenance    
Disclosure of detailed information about property and equipment [line items]    
Weighted average rate (p.a.) 11.00% 27.00%
Property and equipment | Depreciation | Weighted rate | Others    
Disclosure of detailed information about property and equipment [line items]    
Weighted average rate (p.a.) 7.00% 8.00%
Property and equipment | Property and equipment    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period R$ 3,034,554 R$ 2,439,641
Acquisitions   1,306,618
Write-offs   (703,209)
Transfers   (8,496)
Balance, end of period   3,034,554
Property and equipment | Impairment    
Changes in property, plant and equipment [abstract]    
Balance, beginning of period R$ 0 (143,790)
Acquisitions   0
Write-offs   143,790
Transfers   0
Balance, end of period   R$ 0