Flight Route · Domestic
Seattle → Denver
SEA to DEN
Seattle–Tacoma International Airport to Denver International Airport: 1,022 miles (1,645 km), about 2h 33m airborne, +1h time-zone shift on arrival.
Distance
1,022 mi
1,645 km
Flight time
2h 33m
block time, approx
Time-zone shift
+1h
Los_Angeles → Denver
International?
No (domestic)
United States
Airlines serving both airports
These carriers operate scheduled service from both SEA and DEN. Direct service on this specific route depends on season and equipment — confirm with your booking source.
SEA–DEN questions, answered
How long is the flight from Seattle to Denver?
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A direct flight from Seattle–Tacoma International Airport (SEA) to Denver International Airport (DEN) takes approximately 2h 33m. Actual block time varies with aircraft type, winds, and routing.
What is the distance from SEA to DEN?
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The great-circle distance from Seattle–Tacoma International Airport to Denver International Airport is approximately 1022 miles (1645 kilometers). Actual flown distance varies slightly with the routing assigned by air traffic control.
What is the time difference between Seattle and Denver?
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Denver is +1h relative to Seattle. America/Los_Angeles → America/Denver.
Which airlines fly from SEA to DEN?
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Carriers serving both endpoints include WN, UA. Direct service depends on the specific carrier and season — confirm with your booking source for current schedules.
Is this an international flight?
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No — both Seattle and Denver are in United States, so this is a domestic flight.
Can I track SEA–DEN flights on TripDesk365?
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Yes. TripDesk365 imports your booking confirmations from your inbox, identifies the route, and shows real-time status — gate changes, delays, and live aircraft position. Free for 14 days.
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