Denver International Airport
23 miles (37 km) from the city centre. 82.4 million passengers in 2024
| How | Route | Time | Cost |
|---|---|---|---|
| Train | RTD A Line to Denver Union Station | about 37m | $10 Airport Day Pass |
Flights from DCA to DEN
2 airlines fly nonstop from Ronald Reagan Washington National Airport to Denver International Airport. Ronald Reagan Washington National Airport (Washington, D.C.) to Denver International Airport (Denver).
- Distance
- 1,472 mi
- Nonstop flight
- Varies
- Time difference
- −2h
- Nonstop airlines
- 2
Fares from DCA to DEN
Checking today’s fares with the airlines.
Nonstop flights
| Airline | From | To |
|---|---|---|
| Frontier Airlines | DCA Ronald Reagan Washington National Airport | DEN Denver International Airport |
| United Airlines | DCA Ronald Reagan Washington National Airport | DEN Denver International Airport |
Nonstop service as of October 2026. Airlines change schedules seasonally.
Getting from the airport into Denver
Before you go
No passport or visa is needed for domestic travel, but a REAL ID-compliant license or another accepted ID is required to fly within the US.
Denver is 2 hours behind Washington, D.C.. Denver uses the US dollar (USD).
Read the Denver guide: when to go, weather, airports and tips
Frequently asked questions
How long is the flight from DCA to DEN?
Nonstop flight times vary by airline and season; flights with a connection take longer.
Which airlines fly nonstop from DCA to DEN?
As of October 2026, Frontier Airlines and United Airlines fly this route nonstop.
How far is DEN from DCA?
About 1,472 miles (2,369 km) between the airports.
What is the time difference?
Denver is 2 hours behind Washington, D.C..
What ID do I need to fly to Denver?
No passport or visa is needed for domestic travel, but a REAL ID-compliant license or another accepted ID is required to fly within the US.
How do I get from Denver International Airport into Denver?
RTD A Line to Denver Union Station, about 37 minutes, $10 Airport Day Pass.
Related pages
Sources
Information checked in October 2026. Schedules, fares and entry rules change, so confirm with the airline or the official source before you travel.