What Terminal Is Southwest at DEN?

October 12, 2026
Denver International Airport (DIA/DEN)

Southwest Airlines operates from Concourse C at Denver International Airport (DIA/DEN) in Denver, Colorado. The airline’s check-in counters are located on the east side of Jeppesen Terminal, while passengers travel to Concourse C to board their flights. The airport’s underground train connects the main terminal with Concourse C.

Whether you are departing from Denver or arriving on a Southwest flight, knowing where to check in, find your gate, and collect your baggage can help make your airport experience easier.

Southwest Airlines Denver Airport Guide: Terminal Information

Denver International Airport has one main terminal building, called Jeppesen Terminal, and three concourses: A, B, and C. Southwest uses Concourse C for its flights, while check-in and baggage claim are located in the main terminal.

Airport InformationDetails
Airport NameDenver International Airport
Airport CodeDIA / DEN
CityDenver, Colorado
Main TerminalJeppesen Terminal
Airline Check-inLevel 6, East Side
DEN DeparturesConcourse C
DEN ArrivalsConcourse C
Boarding GatesCheck your boarding pass for the assigned gate
Baggage ClaimJeppesen Terminal, Level 5, East Side
Airport TransportationUnderground train, taxis, rideshare, and rental cars

Finding Your Way from Check-In to Concourse C

After checking in and completing security screening, passengers should follow the airport signs to the underground train for Concourse C. The train provides access to the concourse where Southwest flights depart and arrive.

Travel StepWhere to Go
Check-in and Bag DropJeppesen Terminal, Level 6, East
Security ScreeningJeppesen Terminal
Train to Boarding GatesFollow signs to the underground train
Departure GateConcourse C; confirm the gate on your boarding pass
After LandingFollow signs to the train and baggage claim
Checked BaggageJeppesen Terminal, Level 5, East

Passenger Facilities and Transportation at DEN

Travelers can access several facilities before departure and after arrival. Allow extra time to reach your gate, especially during busy travel periods.

FacilityInformation
Restaurants and CafésFood and drinks are available throughout the airport
ShopsRetail stores and travel essentials
ParkingAirport parking options near the terminal
Ground TransportationFollow signs for taxis, rideshare, and shuttles
Rental CarsUse the airport’s designated rental-car transportation
Airport TrainConnects Jeppesen Terminal with the concourses
Passenger AssistanceAirport and airline staff can help with directions

Tips for a Smooth Southwest Flight

  • Arrive early: Southwest suggests arriving around two hours before domestic flights.
  • Use the east side for check-in: The airline’s check-in counters are on Level 6, East.
  • Allow time for the train: Concourse C is reached through the underground airport train after security.
  • Check your gate: Boarding locations can vary, so use your current boarding pass and airport displays.
  • Plan baggage collection: After landing, follow the signs back to Jeppesen Terminal and the East baggage claim area.

Southwest Airlines uses Concourse C at Denver International Airport (DIA/DEN). Check-in is on Level 6, East, and baggage claim is on Level 5, East, in Jeppesen Terminal. Confirm your gate before boarding and leave enough time to travel between the main terminal and the concourse.

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