Air France Cheap Flights from Seattle to London: AF SEA→LON

View HK$3,428 flight on Mon, 26 Jan 2026Opens in a new window
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Prices were available within the past 7 days and start at HK$3,428 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Seattle to London route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
LON-All Airports
Distance
7670 km
*Available to Expedia members.