List of largest airlines in North America

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

By available seat miles (ASMs)

Numbers are listed in billions of ASMs.

Rank Airline Country 2024 2023 2022 2021 2020 2019 Ref
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.

Airlines Country 2024 2023 2022 2021 2020 2019 Ref
American Airlines United States 226,405,000 210,692,000 199,288,000 165,682,000 95,324,000 215,182,000
Delta Air Lines United States 200,000,000 190,000,000 177,000,000 TBA TBA 204,000,000
Southwest Airlines United States 175,466,000 171,817,000 156,982,000 123,264,000 67,785,000 162,681,000
United Airlines United States 173,603,000 164,927,000 144,300,000 104,082,000 57,761,000 162,443,000
Alaska Airlines United States 49,238,000 44,557,000 41,468,000 32,407,000 17,927,000 46,733,000
Air Canada Canada 47,000,000 44,790,000 36,144,000 13,192,000 13,760,000 51,543,000
Spirit Airlines United States 44,180,000 44,105,000 38,463,000 30,828,000 18,746,000 34,537,000
JetBlue Airways United States 40,498,000 42,534,000 39,562,000 30,094,000 14,274,000 42,727,694
Frontier Airlines United States 33,296,000 30,218,000 25,486,000 20,708,000 13,065,000 21,869,000
Volaris Mexico 29,473,000 33,497,000 31,051,000 24,405,000 14,100,000 21,975,000
Viva Mexico 27,695,000 24,992,000 20,698,000 15,268,000 8,123,000 12,019,114
WestJet Canada TBA TBA TBA TBA TBA TBA
Aeroméxico Mexico 25,337,000 24,760,000 21,724,000 16,553,000 9,484,000 20,689,000
Allegiant Air United States 16,764,283 17,143,870 16,630,138 13,509,544 8,553,623 14,823,267
Interjet Mexico n/a n/a n/a n/a n/a 15,184,720
Hawaiian Airlines United States TBA 10,879,000 10,015,000 6,543,000 3,363,000 11,751,003
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

By fleet size

This is a list of airlines ranked by fleet size—not including subsidiaries, nor on order/planned aircraft--as of May 29, 2025:

Airline Fleet size Ref
United Airlines 1,030 [citation needed]
American Airlines 993 [citation needed]
Delta Air Lines 983 [citation needed]
Southwest Airlines 809 [citation needed]
SkyWest Airlines 579 [citation needed]
JetBlue Airways 280 [citation needed]
Alaska Airlines 238 [citation needed]
Republic Airways 209 [citation needed]
Air Canada 208 [citation needed]
Envoy Air 169 [citation needed]
Spirit Airlines 164 [citation needed]
Frontier Airlines 161 [citation needed]
PSA Airlines 144 [citation needed]
WestJet 143 [citation needed]
Endeavor Air 138 [citation needed]
Volaris 106 [citation needed]
Allegiant Air 127 [citation needed]
Aeroméxico 122 [citation needed]
Air Canada Express 105
Jazz Aviation 99 [citation needed]
VivaAerobús 87 [citation needed]
Hawaiian Airlines 73 [citation needed]
Piedmont Airlines 69 [citation needed]
Porter Airlines 66 [citation needed]
CommuteAir 60 [citation needed]
Mesa Airlines 60 [citation needed]
Sun Country Airlines 59 [citation needed]
Breeze Airways 50 [citation needed]
GoJet Airlines 50 [citation needed]
Air Transat 44 [citation needed]
Air Canada Rouge 37 [citation needed]
Air Wisconsin 35 [citation needed]
Aeroméxico Connect 34 [citation needed]
Canadian North 32 [citation needed]
Avelo Airlines 21 [citation needed]
Flair Airlines 20 [citation needed]
Sunwing Airlines 12 [citation needed]
Arajet 10 [citation needed]
Cubana de Aviación 2 [citation needed]

By number of destinations

This is a list of airlines ranked by number of destinations, as of October 25, 2025:

Airline Destinations
Domestic International Total Ref
United Airlines 217 153 370
American Airlines 230 133 363
Delta Air Lines 212 103 315
Air Canada 50 151 201
Alaska Airlines 109 28 137
WestJet 43 88 131
Allegiant Air 122 0 122
Southwest Airlines 106 16 122
JetBlue 66 46 112
Frontier Airlines 86 18 104
Aeromexico 48 55 103
Breeze Airways 77 3 80
Sun Country Airlines 57 20 77
Spirit Airlines 49 28 77
Volaris 44 27 71
Air Transat 10 59 69
Viva 44 17 63
Avelo Airlines 41 4 45
Porter Airlines 24 21 45
Hawaiian Airlines 19 10 29
Flair Airlines 13 12 25
Mexicana de Aviación 15 0 15

By frequency

This is a list of airlines ranked by daily flights (frequency):

Airline Daily departures Ref
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

See also

  • Major airlines of the United States
  • World's largest airlines
  • List of largest airlines in Europe
  • List of largest airlines in Central America & the Caribbean
  • List of largest airlines in Africa
  • List of largest airlines in Asia
  • List of largest airlines in South America
  • List of largest airlines in Oceania

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