Nonstop flights from Washington to Denver

United Airlines flies this route 7 to 8 times a day.

IADWashington Dulles International

1,449 mi · 53 flights a week · about 4h 8m

DENDenver International

IADDEN

When they leave

Washington time

6:10a10:10pFirst departure 6:10 AM, last 10:10 PM

Five in the morning, 6:10 AM to 10:00 AM, then three in the afternoon, 12:40 PM to 4:10 PM, then two in the evening, 5:20 PM to 10:10 PM.

Every flight

Earliest first

6:10 AM→8:19 AMUnited AirlinesAirbus A321neo · 4h 9mMon, Sun
6:35 AM→8:28 AMUnited AirlinesBoeing 737 · 3h 53mThu, Fri
8:15 AM→10:09 AMUnited AirlinesAirbus A321neo · 3h 54mThu, Fri, Sat
8:20 AM→10:29 AMUnited AirlinesAirbus A321neo · 4h 9mMon, Tue, Wed, Sun
10:00 AM→12:09 PMUnited Airlines737 MAX 9 or A321neo · 4h 7mDaily
12:40 PM→2:48 PMUnited AirlinesAirbus A321neo · 4h 8mDaily
2:05 PM→4:13 PMUnited AirlinesBoeing 737 · 4h 8mDaily
4:10 PM→6:17 PMUnited AirlinesBoeing 737 · 4h 7mDaily
5:20 PM→7:30 PMUnited AirlinesAirbus A321neo · 4h 10mDaily
10:10 PM→12:19 AM⁺¹United AirlinesAirbus A321neo · 4h 9mDaily

Schedules last checked Oct 1, 2026. Times are local.

Flying from Washington to Denver

United Airlines is the only airline flying nonstop from Washington to Denver, 7 to 8 times a day on the Airbus A321neo and Boeing 737.

There are 7 or 8 flights every day of the week. The first arrival in Denver is at 8:19 AM and the last at 12:19 AM the next day. The flight covers 1,449 miles, and scheduled flight times run from 3h 53m to 4h 10m.

Flying back, Denver to Washington has 53 nonstop flights a week. Baltimore (BWI) and Ronald Reagan Washington National (DCA) also have nonstop flights to Denver, 57 and 26 a week.

Return flights

Denver to WashingtonView

Every Washington airport

All Washington to Denver flightsView

Find the cheapest day to fly from Washington to Denver.

Schedules as of Oct 9, 2026.