# List of largest airlines in North America

These are lists of the largest airlines in North America, ranked by several metrics.

## Available Seat Miles (ASM in billions)

| Rank | Airline | Country | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
| 1 | United Airlines | United States | 311 | 291 | 248 | 179 | 123 | 285 |
| 2 | American Airlines | United States | 293 | 278 | 260 | 215 | 143 | 285 |
| 3 | Delta Air Lines | United States | 288 | 272 | 233 | 194 | 134 | 275 |
| 4 | Southwest Airlines | United States | 178 | 170 | 148 | 132 | 103 | 157 |
| 5 | Air Canada | Canada | 104 | 99 | | | | |
| 6 | JetBlue | United States | 66 | 68 | | | | |
| 7 | Alaska Airlines | United States | 64 | 63 | | | | |
| 8 | Spirit Airlines | United States | 53 | 56 | | | | |
| 9 | Frontier Airlines | United States | 40 | 38 | | | | |

## By passengers carried

This is a list of North America's largest passenger airlines in terms of enplaned passengers. Passenger numbers shown are inclusive of regional carriers operating under contract where applicable.
| Airline | Country | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 |
| American Airlines | United States | 226,405,000 | 210,692,000 | 199,288,000 | 165,682,000 | 95,324,000 | 215,182,000 | 203,745,000 | 199,640,000 | 198,714,575 | 201,249,127 | 197,340,801 | 193,739,825 | 107,806,578 |
| Delta Air Lines | United States | 200,000,000 | 190,000,000 | 177,000,000 | TBA | TBA | 204,000,000 | 192,465,271 | 186,382,771 | 183,741,787 | 179,382,874 | 171,350,030 | 164,659,644 | 164,571,529 |
| Southwest Airlines | United States | 175,466,000 | 171,817,000 | 156,982,000 | 123,264,000 | 67,785,000 | 162,681,000 | 163,605,833 | 157,677,218 | 151,740,357 | 144,574,882 | 135,767,188 | 133,155,030 | 133,978,100 |
| United Airlines | United States | 173,603,000 | 164,927,000 | 144,300,000 | 104,082,000 | 57,761,000 | 162,443,000 | 158,330,000 | 148,067,000 | 143,177,000 | 140,369,000 | 138,029,000 | 139,209,000 | 140,441,000 |
| Alaska Airlines | United States | 49,238,000 | 44,557,000 | 41,468,000 | 32,407,000 | 17,927,000 | 46,733,000 | 45,802,000 | 44,034,000 | 41,947,000 | 31,883,000 | 29,278,000 | 27,414,000 | 25,896,000 |
| Air Canada | Canada | 47,000,000 | 44,790,000 | 36,144,000 | 13,192,000 | 13,760,000 | 51,543,000 | 50,904,000 | 48,126,000 | 44,849,000 | 41,126,000 | 38,526,000 | 35,761,000 | 34,900,000 |
| Spirit Airlines | United States | 44,180,000 | 44,105,000 | 38,463,000 | 30,828,000 | 18,746,000 | 34,537,000 | 29,312,000 | 24,183,070 | 21,618,039 | 17,921,419 | 14,293,703 | 12,413,812 | 10,422,548 |
| JetBlue Airways | United States | 40,498,000 | 42,534,000 | 39,562,000 | 30,094,000 | 14,274,000 | 42,727,694 | 42,149,989 | 40,038,090 | 38,263,104 | 35,100,986 | 32,078,316 | 30,463,226 | 28,956,213 |
| Volaris | Mexico | TBA | 33,497,000 | 31,051,000 | 24,405,000 | 14,100,000 | 21,975,000 | 18,396,000 | 16,427,000 | 15,005,000 | 11,983,000 | 9,809,000 | 8,900,000 | 7,057,700 |
| Frontier Airlines | United States | 33,296,000 | 30,218,000 | 25,486,000 | 20,708,000 | 13,065,000 | 21,869,000 | 18,669,000 | 15,970,000 | 14,773,000 | 12,569,000 | 11,328,000 | 9,874,000 | 9,927,000 |
| WestJet | Canada | TBA | TBA | TBA | TBA | TBA | TBA | 25,491,290 | 24,137,477 | 21,951,463 | 20,281,376 | 19,651,977 | 18,485,144 | 17,423,000 |
| Viva | Mexico | TBA | 24,992,000 | 20,698,000 | 15,268,000 | 8,123,000 | 12,019,114 | 10,014,062 | 8,195,566 | 6,373,626 | 4,760,000 | 4,000,000 | n/a | n/a |
| Aeroméxico | Mexico | 25,337,000 | 24,760,000 | 21,724,000 | 16,553,000 | 9,484,000 | 20,689,000 | 21,878,000 | 20,666,000 | 19,703,000 | 18,769,000 | 17,190,000 | 15,488,000 | 14,812,000 |
| Allegiant Air | United States | 16,764,283 | 17,143,870 | 16,630,138 | 13,509,544 | 8,553,623 | 14,823,267 | 13,606,103 | 12,138,146 | 11,003,864 | 9,355,097 | 8,017,442 | 7,103,366 | 6,591,707 |
| Interjet | Mexico | n/a | n/a | n/a | n/a | n/a | 15,184,720 | 13,880,000 | 12,378,000 | 11,122,000 | 10,483,000 | 8,686,000 | n/a | n/a |
| Hawaiian Airlines | United States | TBA | 10,879,000 | 10,015,000 | 6,543,000 | 3,363,000 | 11,751,003 | 11,840,178 | 11,505,324 | 11,050,911 | 10,672,667 | 10,195,145 | 9,935,743 | 9,484,204 |
| Flair Airlines | Canada | TBA | 4,500,000 | | | | | | | | | | | |
| Sun Country Airlines | United States | 4,483,515 | 4,140,663 | 3,598,584 | 2,733,364 | 1,740,000 | 3,127,000 | 2,089,000 | 2,062,000 | 1,793,000 | 1,851,000 | 1,576,000 | 1,439,000 | 1,228,000 |

### Notes

* ^1 Numbers on and after 2013 are for the merged American/US Airways
* ^2 Numbers on and after 2016 are for the merged Alaska/Virgin America

## By fleet size

This is a list of airlines ranked by fleet size, as of March 12, 2025:
| Airline | Fleet size |
| United Airlines | 1010 |
| American Airlines | 982 |
| Delta Air Lines | 980 |
| Southwest Airlines | 803 |
| SkyWest Airlines | 580 |
| JetBlue Airways | 290 |
| Alaska Airlines | 238 |
| Air Canada | 211 |
| Republic Airways | 209 |
| Spirit Airlines | 194 |
| Envoy Air | 167 |
| Frontier Airlines | 160 |
| PSA Airlines | 143 |
| WestJet | 136 |
| Endeavor Air | 132 |
| Allegiant Air | 126 |
| Aeroméxico | 115 |
| Volaris | 108 |
| Jazz Aviation | 98 |
| VivaAerobús | 88 |
| Porter Airlines | 71 |
| Hawaiian Airlines | 70 |
| Mesa Airlines | 66 |
| Piedmont Airlines | 62 |
| CommuteAir | 58 |
| Sun Country Airlines | 57 |
| Breeze Airways | 48 |
| GoJet Airlines | 45 |
| Air Transat | 39 |
| Air Wisconsin | 39 |
| Aeroméxico Connect | 37 |
| Air Canada Rouge | 37 |
| Sunwing Airlines | 31 |
| Avelo Airlines | 20 |

## By number of destinations

This is a list of airlines ranked by number of destinations, as of March 11, 2025:
| Airline | Destinations | Destinations | Destinations | Destinations |
| Airline | Domestic | International | Total | Ref |
| United Airlines | 217 | 148 | 365 | |
| American Airlines | 227 | 129 | 356 | |
| Delta Air Lines | 212 | 99 | 311 | |
| Air Canada | 50 | 142 | 192 | |
| Alaska Airlines | 108 | 21 | 129 | |
| Allegiant Air | 122 | 0 | 122 | |
| Southwest Airlines | 103 | 14 | 117 | |
| WestJet | 41 | 75 | 115 | |
| JetBlue | 65 | 48 | 113 | |
| Frontier Airlines | 86 | 21 | 107 | |
| Aeromexico | 48 | 53 | 101 | |
| Sun Country Airlines | 81 | 20 | 101 | |
| Spirit Airlines | 57 | 23 | 80 | |
| Volaris | 44 | 27 | 71 | |
| Breeze Airways | 69 | 0 | 69 | |
| Air Transat | 7 | 55 | 62 | |
| Viva | 41 | 19 | 60 | |
| Avelo Airlines | 49 | 4 | 53 | |
| Porter Airlines | 24 | 17 | 41 | |
| Hawaiian Airlines | 22 | 10 | 32 | |
| Flair Airlines | 14 | 15 | 29 | |
| Mexicana de Aviación | 11 | 0 | 11 | |

## By frequency

This is a list of airlines ranked by daily flights (frequency):
| Airline | Daily departures |
| American Airlines | 5,946 |
| Delta Air Lines | 4,343 |
| United Airlines | 4,167 |
| Southwest Airlines | 3,592 |
| Air Canada | 1,500 |
| Alaska Airlines | 1,200 |
| JetBlue | 925 |
| WestJet | 777 |
| Aeromexico | 600 |
| Frontier Airlines | 500 |
| Spirit Airlines | 400 |
| Interjet | 270 |
| Allegiant Air | 242 |
| Hawaiian Airlines | 212 |
| Volaris | 200 |
| VivaAerobus | 115 |
| Breeze Airways | 105 |
| Sun Country Airlines | 47 |