Your Guide to Airlines Serving Denver Airport
Denver Airport (DEN), also known as DEN, is a major hub for domestic and international air travel. There are over 20 airlines that provide service for DEN, with daily flights to more than 200 nonstop destinations.
United Airlines
United Airlines is the largest carrier at DEN, with over 400 daily flights and nonstop service to over 100 destinations. United operates out of all three terminals at DEN, with a major presence in Concourse B.
Southwest Airlines
Southwest Airlines is the second largest carrier at DEN, with over 200 daily flights and nonstop service to over 60 destinations. Southwest operates out of Concourse C at DEN.
Delta Air Lines
Delta Air Lines is a major carrier at DEN, with over 150 daily flights and nonstop service to over 50 destinations. Delta operates out of Concourse A at DEN.
American Airlines
American Airlines is a major carrier at DEN, with over 100 daily flights and nonstop service to over 30 destinations. American operates out of Concourse A at DEN.
Frontier Airlines
Frontier Airlines is a low-cost carrier based in Denver, with over 80 daily flights and nonstop service to over 50 destinations. Frontier operates out of Concourse A at DEN.
Note that the above information can change at any time. See a complete list of airlines served, including terminal locations below:
Maps, Airlines & Amenities
Denver Airport (DEN) Terminals
| Westjet Airlines | Concourse A |
| Southwest Airlines | Concourse C |
| Volaris Airlines | Concourse A |
| American Airlines | Concourse A |
| United Airlines | Concourse B |
| Lufthansa | Concourse A |
| Boutique Air | Concourse A |
| Alaska Airlines | Concourse C |
| Jetblue | Concourse A |
| Sun Country Airlines | Concourse A |
| Icelandair | Concourse A |
| Delta Airlines | Concourse A |
| Denver Air Connection (Key Lime Air) | Concourse A |
| Thai Airasia | Concourse A |
| Aeromexico Airlines | Concourse A |
| Edelweiss Air Airlines | Concourse A |
| Frontier Airlines | Concourse A |
| Air Canada | Concourse A |
| Spirit Airlines | Concourse C |
| British Airways | Concourse A |
| Itali Airlines | Concourse C |
| COPA Airlines | Concourse A |
| Cayman Airways | Concourse A |
| Norwegian Air Uk | Concourse A |