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 Washington, D.C. to Denver
3 airlines fly nonstop from Washington, D.C. to Denver.
- Distance
- 1,489 mi
- Nonstop flight
- Varies
- Time difference
- −2h
- Nonstop airlines
- 3
Fares from Washington, D.C. to Denver
Checking today’s fares with the airlines.
Nonstop flights
| Airline | From | To |
|---|---|---|
| United Airlines | IAD Washington Dulles International Airport | DEN Denver International Airport |
| Frontier Airlines | DCA Ronald Reagan Washington National Airport | DEN Denver International Airport |
| United Airlines | DCA Ronald Reagan Washington National Airport | DEN Denver International Airport |
| Southwest Airlines | BWI Baltimore/Washington International Thurgood Marshall Airport | DEN Denver International Airport |
| United Airlines | BWI Baltimore/Washington International Thurgood Marshall 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 Washington, D.C. to Denver?
Nonstop flight times vary by airline and season; flights with a connection take longer.
Which airlines fly nonstop from Washington, D.C. to Denver?
As of October 2026, United Airlines, Frontier Airlines and Southwest Airlines fly this route nonstop.
Which airports do nonstop flights use?
Nonstop flights leave from Washington Dulles International Airport (IAD), Ronald Reagan Washington National Airport (DCA) and Baltimore/Washington International Thurgood Marshall Airport (BWI) and arrive at Denver International Airport (DEN).
How far is Denver from Washington, D.C.?
About 1,489 miles (2,397 km), measured between the city centres.
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.