v3.26.1
SALES REVENUE (Details) - BRL (R$)
R$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disclosure of disaggregation of revenue from contracts with customers [line items]        
Total R$ 5,025,619 R$ 4,975,528 R$ 10,527,101 R$ 10,401,228
Taxes levied (46,969) (33,184) (77,082) (64,462)
Total revenue 4,978,650 4,942,344 10,450,019 10,336,766
Domestic revenue        
Disclosure of disaggregation of revenue from contracts with customers [line items]        
Total revenue 4,075,657 3,913,259 8,450,513 8,219,014
Foreign revenue        
Disclosure of disaggregation of revenue from contracts with customers [line items]        
Total revenue 902,993 1,029,085 1,999,506 2,117,752
Passenger revenue        
Disclosure of disaggregation of revenue from contracts with customers [line items]        
Total 4,573,579 4,579,638 9,623,102 9,597,841
Taxes levied (13,046) (716) (13,792) (1,545)
Other revenues        
Disclosure of disaggregation of revenue from contracts with customers [line items]        
Total 452,040 395,890 903,999 803,387
Taxes levied R$ (33,923) R$ (32,468) R$ (63,290) R$ (62,917)