American Airlines Cheap Flights from Seattle to London: AA SEA→LON

View HK$4,043 flight on Sun, 3 Aug 2025Opens in a new window

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Prices were available within the past 7 days and start at HK$4,043 for one-way flights and HK$6,639 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, 3 Aug - Tue, 19 Aug
SEA
Seattle
LHR
London
HK$6,639 Return, just found
HK$6,639
Return
just found
Select American Airlines flight, departing Sun, 3 Aug from Seattle to London, returning Tue, 19 Aug, priced at HK$6,639 just found
Seattle to London route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Heathrow
Distance
7657 km
*Available to Expedia members.