Nonstop flights from Washington to Denver

3 airlines fly from 3 Washington airports (BWI, IAD and DCA) to Denver (DEN), with up to 21 flights a day.

BWIDEN

Routes

3 airport pairs

When they leave

Washington time

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

12 in the morning, 6:10 AM to 11:35 AM, then nine in the afternoon, 12:40 PM to 4:18 PM, then three in the evening, 5:20 PM to 10:10 PM.

Every flight

Earliest first

6:10 AM→8:19 AMIAD to DENUnited AirlinesAirbus A321neo · 4h 9mMon, Sun
6:30 AM→8:15 AMBWI to DENSouthwest AirlinesBoeing 737Daily
6:35 AM→8:28 AMIAD to DENUnited AirlinesBoeing 737 · 3h 53mThu, Fri
7:00 AM→9:01 AMDCA to DENFrontier AirlinesAirbus A320neoDaily
8:10 AM→10:05 AMBWI to DENSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri
8:15 AM→10:05 AMBWI to DENSouthwest AirlinesBoeing 737 MAX 8Sun
8:15 AM→10:09 AMIAD to DENUnited AirlinesAirbus A321neo · 3h 54mThu, Fri, Sat
8:20 AM→10:29 AMIAD to DENUnited AirlinesAirbus A321neo · 4h 9mMon, Tue, Wed, Sun
8:30 AM→10:28 AMBWI to DENUnited AirlinesBoeing 737 MAX 9Daily
10:00 AM→12:09 PMIAD to DENUnited Airlines737 MAX 9 or A321neo · 4h 7mDaily
10:05 AM→11:50 AMBWI to DENSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri, Sun
11:10 AM→12:55 PMBWI to DENSouthwest AirlinesBoeing 737Tue, Wed
11:35 AM→1:20 PMBWI to DENSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri, Sun
12:40 PM→2:48 PMIAD to DENUnited AirlinesAirbus A321neo · 4h 8mDaily
1:00 PM→2:45 PMBWI to DENSouthwest AirlinesBoeing 737 MAX 8Sat
1:10 PM→2:55 PMBWI to DENSouthwest AirlinesBoeing 737-700Daily
1:59 PM→3:53 PMDCA to DENFrontier AirlinesAirbus A320neoMon, Wed, Thu, Fri, Sat, Sun
2:05 PM→4:13 PMIAD to DENUnited AirlinesBoeing 737 · 4h 8mDaily
2:20 PM→4:10 PMBWI to DENSouthwest AirlinesBoeing 737 MAX 8Tue, Wed
4:10 PM→6:00 PMBWI to DENSouthwest AirlinesBoeing 737Mon, Tue, Wed, Thu, Fri, Sat
4:10 PM→6:17 PMIAD to DENUnited AirlinesBoeing 737 · 4h 7mDaily
4:13 PM→6:25 PMDCA to DENUnited AirlinesAirbus A321neoDaily
4:18 PM→6:16 PMBWI to DENUnited AirlinesBoeing 737 MAX 9Daily
5:20 PM→7:30 PMIAD to DENUnited AirlinesAirbus A321neo · 4h 10mDaily
6:00 PM→7:55 PMBWI to DENSouthwest AirlinesBoeing 737 MAX 8Mon, Tue, Wed, Thu, Fri, Sun
6:00 PM→8:07 PMDCA to DENFrontier AirlinesAirbus A320neoMon, Tue, Thu, Fri, Sat, Sun
10:10 PM→12:19 AM⁺¹IAD to DENUnited AirlinesAirbus A321neo · 4h 9mDaily

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

Flying from Washington to Denver

United Airlines flies most often, 10 to 11 times a day on the Airbus A321neo, Boeing 737 and Boeing 737 MAX 9. Southwest Airlines flies 4 to 7 times a day on the Boeing 737 MAX 8, Boeing 737 and Boeing 737-700. Frontier Airlines flies 2 to 3 times a day on the Airbus A320neo.

Flights run every day of the week, from 17 on Saturdays to 21 on Mondays, Thursdays and Fridays. The first arrival in Denver is at 8:15 AM and the last at 12:19 AM the next day.

BWI to DEN is the busiest airport pair, with 57 flights a week, then IAD to DEN with 53 and DCA to DEN with 26.

Flying back, Denver to Washington has 135 nonstop flights a week.

Return flights

Denver to WashingtonView

Find the cheapest day to fly from Washington to Denver.

Schedules as of Oct 9, 2026.