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Geographic Information (Tables)
12 Months Ended
Dec. 31, 2021
Segment Reporting [Abstract]  
Summary of operating revenues by geographic regions
Operating revenues are allocated to geographic regions, as defined by the Department of Transportation, or DOT, based upon the origination and destination of each flight segment. As of December 31, 2021, we served 33 locations in the Caribbean and Latin American region, or Latin America as defined by the DOT. We also served two destinations in Europe, or Atlantic as defined by the DOT. Our management includes the three destinations in Puerto Rico and one destination in the U.S. Virgin Islands in our Caribbean and Latin America allocation of revenues. Therefore, we have reflected these locations within the Caribbean and Latin America region in the table below. Operating revenues by geographic regions for the years ended December 31 are summarized below (in millions):
202120202019
Domestic$3,869 $1,890 $5,633 
Caribbean & Latin America2,150 1,067 2,461 
Atlantic18 — — 
Total$6,037 $2,957 $8,094