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

Weekly schedule for flights between Washington Dulles Intl (Washington, United States) and Seattle-Tacoma Intl (Seattle, United States) operated by 1 airlines.
40 weekly flights operate on this route flying 2,313mi in 18h13min.
Expect $287 in average for a one-way ticket with the cheapest option at $0.