Nonstop flights from Denver to Seattle

5 airlines fly this route, with up to 23 flights a day.

DENDenver International

1,022 mi · 149 flights a week

SEASeattle-Tacoma International

DENSEA

When they leave

Denver time

6:02a9:08pFirst departure 6:02 AM, last 9:08 PM

13 in the morning, 6:02 AM to 11:40 AM, then 10 in the afternoon, 12:02 PM to 4:45 PM, then 10 in the evening, 5:34 PM to 9:08 PM.

Every flight

Earliest first

6:02 AM→8:05 AMAlaska AirlinesBoeing 737Mon, Tue, Thu, Fri, Sat, Sun
6:20 AM→8:19 AMDelta Air LinesAirbus A220-300Daily
7:00 AM→9:04 AMFrontier AirlinesAirbus A321Daily
8:02 AM→10:01 AMUnited AirlinesBoeing 737Daily
8:40 AM→10:42 AMAlaska AirlinesBoeing 737Daily
8:45 AM→10:40 AMSouthwest AirlinesBoeing 737Sun
9:05 AM→11:00 AMSouthwest AirlinesBoeing 737-700Sat
9:05 AM→11:00 AMSouthwest AirlinesBoeing 737 MAX 8Tue, Wed
9:15 AM→11:10 AMSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri
9:45 AM→11:44 AMUnited AirlinesBoeing 737 MAX 8Mon, Tue, Wed, Thu, Fri, Sun
11:00 AM→1:17 PMFrontier AirlinesAirbus A320neoDaily
11:23 AM→1:22 PMUnited AirlinesAirbus A321neoDaily
11:25 AM→1:20 PMSouthwest AirlinesBoeing 737 MAX 8Tue, Wed, Sat
11:40 AM→1:40 PMSouthwest AirlinesBoeing 737Sat, Sun
12:02 PM→2:00 PMAlaska AirlinesBoeing 737Wed
12:55 PM→2:53 PMAlaska AirlinesBoeing 737Mon, Tue, Thu, Fri, Sat, Sun
1:00 PM→2:55 PMSouthwest AirlinesBoeing 737 MAX 8Mon, Thu, Fri
1:21 PM→3:23 PMDelta Air LinesAirbus A220-300Daily
1:55 PM→3:52 PMUnited AirlinesBoeing 737 MAX 9Mon, Wed, Thu, Fri, Sun
3:40 PM→5:35 PMSouthwest AirlinesBoeing 737Mon, Thu, Fri, Sat, Sun
3:45 PM→5:42 PMUnited AirlinesBoeing 737 MAX 9Daily
4:15 PM→6:10 PMSouthwest AirlinesBoeing 737 MAX 8Tue, Wed
4:36 PM→6:38 PMAlaska AirlinesBoeing 737Mon, Wed, Thu, Fri, Sat, Sun
4:36 PM→6:38 PMAlaska AirlinesBoeing 737Tue
4:45 PM→6:40 PMSouthwest AirlinesBoeing 737 MAX 8Sun
5:34 PM→7:34 PMAlaska AirlinesBoeing 737 MAX 9Wed
6:15 PM→8:17 PMAlaska AirlinesBoeing 737 MAX 8Mon, Thu, Fri, Sat, Sun
6:15 PM→8:17 PMAlaska AirlinesBoeing 737Tue
6:43 PM→8:45 PMDelta Air LinesAirbus A220-300Daily
6:50 PM→8:45 PMSouthwest AirlinesBoeing 737Mon, Thu, Fri
7:08 PM→9:08 PMAlaska AirlinesBoeing 737Wed
7:14 PM→9:15 PMUnited AirlinesAirbus A321neoDaily
8:55 PM→10:55 PMSouthwest AirlinesBoeing 737-700Mon, Thu, Fri
9:03 PM→11:04 PMUnited AirlinesBoeing 737 MAX 9Wed, Thu, Fri, Sun
9:05 PM→11:05 PMSouthwest AirlinesBoeing 737 MAX 8Tue, Wed, Sun
9:08 PM→11:10 PMAlaska AirlinesBoeing 737Mon, Thu, Fri, Sun

Schedules last checked Sep 19, 2026. Times are local.

Flying from Denver to Seattle

United Airlines flies most often, 4 to 7 times a day on the Boeing 737 MAX 9, Airbus A321neo, Boeing 737 and Boeing 737 MAX 8. Alaska Airlines flies 5 to 6 times a day on the Boeing 737, Boeing 737 MAX 8 and Boeing 737 MAX 9. Southwest Airlines flies 4 to 5 times a day on the Boeing 737 MAX 8, Boeing 737 and Boeing 737-700. Delta Air Lines flies 3 times a day on the Airbus A220-300. Frontier Airlines flies twice a day on the Airbus A320neo and Airbus A321.

Flights run every day of the week, from 18 on Saturdays to 23 on Thursdays, Fridays and Sundays. The first arrival in Seattle is at 8:05 AM and the last at 11:10 PM. The flight covers 1,022 miles.

Flying back, Seattle to Denver has 148 nonstop flights a week.

Return flights

Seattle to DenverView

Find the cheapest day to fly from Denver to Seattle.

Schedules as of Oct 9, 2026.