Direct flights from Denver to Seattle
All flights from DEN to SEA non-stop. There are direct flights from Denver International (DEN), Colorado, USA to Seattle Tacoma International (SEA), Washington, USA with United Airlines, Alaska Airlines and 4 other airlines. 158 weekly departures are currently scheduled on this route. Departure times range from 06:00 to 22:45 depending on the schedule period. The flight distance is 1028 miles (1654 km). Flight time ranges from 2 hours and 50 minutes to 3 hours and 17 minutes.
Denver
, USA
Airlines with non-stop routes:
United Airlines
Alaska Airlines
Southwest Airlines
Frontier Airlines
Delta Air Lines
American Airlines
Sun Country Airlines
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 2026-06-29
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 2026-06-29
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 2026-06-29
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 2026-06-29
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 2026-06-29
Flight schedule from Denver to Seattle with American Airlines
This is a weekly direct flight schedule for American 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
Denver to Seattle scheduled departures
Select a date to see every published non-stop departure between DEN and SEA.
DEN - SEA route facts
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Distance1028 miles (1654 km)
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Flight time2 hours and 50 minutes to 3 hours and 17 minutes
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Airlines United Alaska Airlines Southwest Frontier Delta American Airlines
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Airline alliancesStar Alliance oneworld Low-cost carrier SkyTeam
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CabinsEconomy Premium Economy Business First
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Hub airportsUnited Airlines: DENAlaska Airlines: SEA (Primary hub.)Delta Air Lines: SEA
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AircraftUnited Airlines: Boeing 737-800 Passenger, Airbus A320, Airbus A319, Boeing 737-900 Passenger, Airbus A321neo, Boeing 737MAX 8 Passenger and Boeing 737MAX 9 PassengerAlaska Airlines: Boeing 737MAX 9 Passenger, Boeing 737-900 (winglets) Passenger/BBJ3, Boeing 737-800 (winglets) Passenger/BBJ2, Boeing 737MAX 8 Passenger and Boeing 737-700 PassengerSouthwest Airlines: Boeing 737-700 Passenger (Scimitar Winglets) , Boeing 737MAX 8 Passenger and Boeing 737-800 (winglets) Passenger/BBJ2Frontier Airlines: Airbus A321, Airbus A321neo, Airbus A320 and Airbus A320neoDelta Air Lines: Airbus A220-300, Embraer 175 (Enhanced Winglets), Boeing 737-900 Passenger, Airbus A220-100 and Boeing 737-800 PassengerAmerican Airlines: Boeing 737-800 Passenger
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