Denver (DEN) to Washington (DCA) flights
2 airlines fly nonstop from Denver (DEN) to Washington (DCA): Frontier Airlines and United Airlines. The two airports are 1,472 miles (2,369 km) apart. United Airlines is in Star Alliance. There are also 79 ways to fly it with one stop, through Indianapolis, Dayton and Columbus and more.
Airlines flying nonstop from DEN to DCA
- Frontier AirlinesNot in an allianceWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book DEN to DCA with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
DEN to DCA with one stop
79 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Indianapolis (IND)Frontier Airlines, United Airlines and 1 more, then American Airlines
- Via Dayton (DAY)United Airlines, then American Airlines
- Via Columbus (CMH)Southwest Airlines the whole way
- Via Cincinnati (CVG)Frontier Airlines, United Airlines and 1 more, then American Airlines and Delta Air Lines
- Via Kansas City (MCI)Southwest Airlines and American Airlines the whole way+1
- Via Omaha (OMA)Southwest Airlines the whole way
- Via Des Moines (DSM)Frontier Airlines, United Airlines and 1 more, then American Airlines
- Via Saint Louis (STL)Southwest Airlines the whole way
- Via Cedar Rapids (CID)Frontier Airlines and United Airlines, then American Airlines
- Via Pittsburgh (PIT)United Airlines and Southwest Airlines, then American Airlines
- Via Chicago (MDW)Southwest Airlines the whole way
- Via Louisville (SDF)United Airlines and Southwest Airlines, then American Airlines
- Via Chicago (ORD)American Airlines and United Airlines the whole way
- Via Lexington (LEX)United Airlines, then Delta Air Lines
- Via Cleveland (CLE)Frontier Airlines, United Airlines and 1 more, then American Airlines
DEN to DCA: common questions
Which airlines fly nonstop from DEN to DCA?
Frontier Airlines and United Airlines (Star Alliance) fly nonstop from Denver (DEN) to Washington (DCA).
How far is Denver from Washington by plane?
Denver (DEN) and Washington (DCA) are 1,472 miles (2,369 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book DEN to DCA award flights?
13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does DEN to DCA cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for DEN to DCA with taxes and fees.
Where can I connect between Denver and Washington?
The most direct connections are through Indianapolis (IND), Dayton (DAY), Columbus (CMH), Cincinnati (CVG) and Kansas City (MCI). On 34 of them the same airline flies both flights, for example Southwest Airlines through Columbus.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.