Direct flights from Denver to Seattle
All flights from DEN to SEA non-stop. There are direct flights from Denver International, Colorado, USA to Seattle Tacoma International (SEA), Washington, USA every day of the week The flight distance is 1028 miles and the trip usually takes about 3 hours and 3 minutes.
Denver
, USA
Airlines with non-stop routes:
United Airlines
Alaska Airlines
Southwest Airlines
Delta Air Lines
Frontier Airlines
Sun Country Airlines
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Flight schedule from Denver to Seattle with United Airlines
This is a weekly direct flight schedule for United Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2025-06-13
Flight schedule from Denver to Seattle with Alaska Airlines
This is a weekly direct flight schedule for Alaska Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2025-06-13
Flight schedule from Denver to Seattle with Southwest Airlines
This is a weekly direct flight schedule for Southwest Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2025-06-13
Flight schedule from Denver to Seattle with Delta Air Lines
This is a weekly direct flight schedule for Delta Air Lines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2025-06-13
Flight schedule from Denver to Seattle with Frontier Airlines
This is a weekly direct flight schedule for Frontier Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2025-06-13
Denver to Seattle flight departures
Select a date to see all scheduled flight departures between DEN to SEA.
DEN - SEA information
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Distance1028 miles (1654 km)
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Flight time3 hours and 3 minutes
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Airlines United Alaska Airlines Southwest Delta Frontier Airlines
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AlliancesOne WorldSky TeamStar Alliance
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ClassesEconomyBusinessFirst Class
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United AircraftsAirbus A318 / A319 / A320 / A321Boeing 737 Passenger
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Alaska Airlines AircraftBoeing 737 Passenger
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Southwest AircraftBoeing 737 Passenger
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Delta AircraftsAirbus A220Boeing 737 PassengerEmbraer 170 / 175 / 190 / 195
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Frontier Airlines AircraftAirbus A318 / A319 / A320 / A321
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