Direct flights
from London (LHR)
to Seattle (SEA)

Weekly schedule for flights between Heathrow (London, United Kingdom) and Seattle-Tacoma Intl (Seattle, United States) operated by 1 airlines.
18 weekly flights operate on this route flying 4,812mi in 13h39min.
Expect $730 in average for a one-way ticket with the cheapest option at $543.