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Description of the business and summary of significant accounting policies - Relevant events (Details)
$ in Billions
Dec. 11, 2020
$ / shares
shares
Feb. 24, 2020
Jun. 20, 2019
MXN ($)
item
Feb. 16, 2018
shares
Nov. 10, 2016
Feb. 17, 2010
May 09, 2005
Description of the business and summary of significant accounting policies              
Notes issued | $     $ 1.5        
Authorized amount under the program | $     $ 3.0        
Maturity of notes     5 years        
Term of authorization to provide air transportation services   20 years          
Concesionaria              
Description of the business and summary of significant accounting policies              
Term of authorization to provide air transportation services           10 years 5 years
Volaris Costa Rica              
Description of the business and summary of significant accounting policies              
Term of authorization to provide air transportation services         5 years    
28-day TIIE              
Description of the business and summary of significant accounting policies              
Basis points     1.75%        
Asset backed trust notes ("CEBUR"), in Mexican pesos              
Description of the business and summary of significant accounting policies              
Number of notes issued | item     15,000,000        
Notes issued | $     $ 1.5        
Authorized amount under the program | $     $ 3.0        
Maturity of notes     5 years        
Basis points     1.75%        
Series B shares              
Description of the business and summary of significant accounting policies              
Conversion of equivalent number of shares       45,968,598      
Series A shares              
Description of the business and summary of significant accounting policies              
Number of shares per CPO 1            
American Depositary Shares              
Description of the business and summary of significant accounting policies              
Weighted average share price | $ / shares $ 11.25            
Number of CPOs per ADS 10            
Primary follow-on equity offering              
Description of the business and summary of significant accounting policies              
Number of shares offered 134,000,000            
Over-allotment | American Depositary Shares              
Description of the business and summary of significant accounting policies              
Number of shares issued 20,100,000