v3.26.1
LOANS AND FINANCING - Additional information (Details)
R$ / shares in Units, R$ in Thousands, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
May 31, 2025
USD ($)
May 31, 2025
BRL (R$)
Apr. 30, 2025
BRL (R$)
Jun. 30, 2025
BRL (R$)
R$ / shares
Mar. 31, 2025
BRL (R$)
Dec. 31, 2025
BRL (R$)
May 31, 2025
BRL (R$)
Apr. 30, 2025
USD ($)
Apr. 30, 2025
BRL (R$)
Mar. 31, 2025
USD ($)
Mar. 31, 2025
BRL (R$)
Disclosure of detailed information about borrowings [line items]                      
Debt into equity conversion           R$ (1,613,050)          
Azul Secured                      
Disclosure of detailed information about borrowings [line items]                      
Preferred shares at a price       R$ 450,572,669              
Senior Notes 1L – 2028 | Azul Secured                      
Disclosure of detailed information about borrowings [line items]                      
Issue amount                   $ 1,048,839 R$ 6,180,810
Average nominal rate p.a.                   11.90% 11.90%
Incorporation into the principal of fees                     R$ 396,779
Senior notes 2L – 2029 | Azul Secured                      
Disclosure of detailed information about borrowings [line items]                      
Issue amount       1,613,050           $ 238,015 R$ 1,443,339
Average nominal rate p.a.                   11.50% 11.50%
Incorporation into the principal of fees                     R$ 26,854
Senior notes 2L – 2030 | Azul Secured                      
Disclosure of detailed information about borrowings [line items]                      
Issue amount       R$ 1,613,050           $ 546,620 R$ 3,309,622
Average nominal rate p.a.                   10.90% 10.90%
Incorporation into the principal of fees                     R$ 58,290
Preferred shares at a price (in brazilian real per share) | R$ / shares       R$ 1.95              
Debt into equity conversion       R$ 734,433              
Superpriority notes | Azul Secured                      
Disclosure of detailed information about borrowings [line items]                      
Issue amount                   $ 525,000 3,093,825
Incorporation into the principal of fees                     R$ 315,190
Interest in the amount         R$ 27,508            
Superpriority notes | Azul Secured | Bottom of range                      
Disclosure of detailed information about borrowings [line items]                      
Average nominal rate p.a.                   8.30% 8.30%
Superpriority notes | Azul Secured | Top of range                      
Disclosure of detailed information about borrowings [line items]                      
Average nominal rate p.a.                   10.70% 10.70%
New bridge notes | Azul Secured                      
Disclosure of detailed information about borrowings [line items]                      
Interest in the amount     R$ 20,082                
New bridge notes | Azul Secured | October 2025                      
Disclosure of detailed information about borrowings [line items]                      
Issue amount               $ 107,656 R$ 610,208    
Average nominal rate p.a.               13.50% 13.50%    
Incorporation into the principal of fees                 R$ 74,976    
Debtor in possession | Azul Secured                      
Disclosure of detailed information about borrowings [line items]                      
Interest in the amount   R$ 722,849                  
Debtor in possession | Azul Secured | Feb-26                      
Disclosure of detailed information about borrowings [line items]                      
Issue amount $ 1,600,000           R$ 8,667,775        
Average nominal rate p.a. 15.00%           15.00%        
Incorporation into the principal of fees             R$ 412,881        
Financing facility | $ $ 1,600,000                    
Issue amount             R$ 9,080,656        
Letters of credit | Azul Secured                      
Disclosure of detailed information about borrowings [line items]                      
Execution of letters of credit           R$ 1,995,890