There are 2,322.69 miles from Seattle–Tacoma International Airport (SEA) to Ronald Reagan Washington National Airport (DCA) in southeast direction and 2,805 miles (4,514.21 kilometers) by car, following the I-90 route.
SEA Airport and DCA Airport are 1 day 16 hours far apart, if you drive non-stop.
This is the fastest route from SEA Airport to DCA Airport. The halfway point is Oacoma, SD.
Please note the time difference between SEA Airport and DCA Airport is 3 hours. The current time in SEA Airport is 11:27 pm (Nov 19) and the current time in DCA Airport is 2:27 am (Nov 20).
Any questions or tips to share?
Share with fellow travellers any question or tips about the route from SEA Airport to DCA Airport: