Direct flights
from Seattle (SEA)
to Washington (IAD)

Weekly schedule for flights between Seattle-Tacoma Intl (Seattle, United States) and Washington Dulles Intl (Washington, United States) operated by 1 airlines.
21 weekly flights operate on this route flying 2,313mi in 5h03min.
Expect $277 in average for a one-way ticket with the cheapest option at $237.