Direct (nonstop) flights from Denver to Washington
2 airlines fly nonstop from Denver International (DEN) to Ronald Reagan Washington National (DCA). It's 1,475 miles (2,374 km), about 3h 25m in the air. Operated by Frontier Airlines, United Airlines.
Frontier Airlines
United Airlines
Route data last updated: May 30, 2026
Airlines with non-stop flights
F9
Frontier Airlines
UA
United Airlines
Alternative Routes
Other ways to fly from Denver to Washington with one stop · direct emits 249 kg CO₂ per passenger
Looking for the return flight?
DCA → DEN: Flights from Washington to DenverOther direct flights from Denver
Direct flights from Washington (DCA)
Frequently Asked Questions
How long is the direct flight from Denver to Washington?
A nonstop flight from Denver (DEN) to Washington (DCA) takes approximately 3 hours and 25 minutes. The distance is 1,475 miles (2,374 km).
Which airlines fly nonstop from Denver to Washington?
2 airlines: Frontier Airlines, United Airlines.
Is there a nonstop flight from Denver to Washington?
Yes. 2 airlines: Frontier Airlines, United Airlines.
How far is Denver from Washington?
The flight distance from Denver to Washington is 1,475 miles (2,374 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from Denver to Washington?
At 3h 25m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Denver to Washington?
Roughly 249 kg CO2 per passenger one-way. That's about the same as driving 1,245 km.
Is the return flight from Washington to Denver also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Denver to Washington?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Denver International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.