In which states are the major US airlines most active? We've mapped out capacity (domestic + international) for a selection of the country's top airlines, showing the hotspots and diversity of each carrier’s network. Test your knowledge by taking our quiz and match the airline to the map.
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Choose an airline below to see their 2025 total (domestic + international) capacity mapped by US state.
The Biggest States For US Major Airlines
Listed below are the top three states for each of the selected airlines, based on scheduled seat capacity in 2025:
Alaska Airlines
1. Washington: 17,624,087
2. California: 14,135,915
3. Oregon: 6,134,066
Allegiant Air LLC
1. Florida: 7,236,994
2. Arizona: 1,223,613
3. Tennessee: 1,212,530
American Airlines
1. Texas: 50,774,545
2. North Carolina: 34,718,965
3. Florida: 33,574,700
Delta Air Lines
1. Georgia: 50,713,460
2. New York: 24,031,622
3. Florida: 18,022,021
JetBlue Airways
1. New York: 13,367,240
2. Florida: 11,224,249
3. Massachusetts: 7,327,987
Southwest Airlines
1. California: 35,037,940
2. Texas: 31,834,645
3. Florida: 19,246,422
Spirit Airlines
1. Florida: 10,763,671
2. Texas: 3,331,235
3. Nevada: 3,194,153
United Airlines
1. California: 30,448,089
2. Texas: 27,004,795
3. Colorado: 26,056,901
- Delaware is the only state not served by any of these airlines, Avelo being the sole carrier with scheduled capacity in that state for 2025.
- Alaska Airlines is the largest carrier serving the Alaska, but its top state is Washington, where the airline is based (in Seattle) and where it has 17.6M seats scheduled in 2025.
- California stands out as the top state for both United Airlines and Southwest Airlines, each scheduling more than 30 million seats there in 2025, underlining the state's role as a central hub for domestic air travel.
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