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Flight distance & time
Ronald Reagan Washington National Airport → Seattle Tacoma International Airport
DCASEA
- Distance
- 3,737 km · 2,322 mi
- Flight time
- 05h 25m
- CO₂ per passenger
- 336 kg
This Ronald Reagan Washington National Airport → Seattle Tacoma International Airport route is 3,737 km (2,322 mi) end to end. The estimated flight time is 05h 25m, and a passenger's share of CO₂ works out at roughly 336 kg.
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Your route
- FromDCARonald Reagan Washington National AirportWashington, Virginia
- ToSEASeattle Tacoma International AirportSeattle, Washington
Flight map
Track your lifetime distance flown across every trip.
Route service
Average daily flights~4 flights/day
Airlines on this route
Alaska AirlinesDelta Air Lines
Common questions
Ronald Reagan Washington National Airport to Seattle Tacoma International Airport FAQ
How far is Ronald Reagan Washington National Airport from Seattle Tacoma International Airport?
Ronald Reagan Washington National Airport (DCA) and Seattle Tacoma International Airport (SEA) are 3,737 km (2,322 mi) apart, measured along the great-circle route.
How long is the flight from Ronald Reagan Washington National Airport to Seattle Tacoma International Airport?
A direct DCA–SEA flight covers the distance in about 05h 25m, though the exact time shifts with aircraft type and winds.
How much CO₂ does a flight from Ronald Reagan Washington National Airport to Seattle Tacoma International Airport produce?
A passenger's share of CO₂ on the DCA–SEA route is roughly 336 kg.
Which airlines fly from Ronald Reagan Washington National Airport to Seattle Tacoma International Airport?
Alaska Airlines, Delta Air Lines operate scheduled service between DCA and SEA.
Flight distance and time are estimates for ideal conditions — actual figures vary with aircraft type, routing and weather.
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