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