Flights from London Gatwick to Seattle Tacoma

Our cheapest offers for flights from London Gatwick to Seattle Tacoma

Here you can compare cheap flights from London Gatwick (LGW) to Seattle Tacoma (SEA) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Seattle Tacoma. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
London Gatwick
Seattle-Tacoma
Outbound
23/01/26
1 Stopover (KEF)
FI0471, FI0681
13h 05min
Return
31/01/26
1 Stopover (KEF)
FI0680, FI0470
12h 20min
Icelandair
£411
London Gatwick
Seattle-Tacoma
Outbound
16/12/25
1 Stopover (KEF)
FI0471, FI0681
13h 05min
Return
13/01/26
1 Stopover (KEF)
FI0680, FI0470
12h 20min
Icelandair
£428
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from London Gatwick to Seattle Tacoma

Favourite airline: Icelandair
94 % of flights booked on the route from London Gatwick to Seattle-Tacoma are booked with Icelandair, Turkish Airlines and Virgin Atlantic.
Icelandair
50 %
Turkish Airlines
38 %
Virgin Atlantic
6 %
Favourite connection: via Reykjavik-Keflavik
Stopover flights on this route are especially popular via Reykjavik-Keflavik, making up 53 % of bookings.
Route
bookings
1 stopover Reykjavik-Keflavik International
15h 35min, from 519 £
53 %
1 stopover Istanbul
32h 05min, from 891 £
40 %
1 stopover New York John F Kennedy
18h 25min, from 943 £
7 %

Important flight information

Flight information: London Gatwick - Seattle-Tacoma

Outbound and return from 410,99 £
Distance 7751 km
Departure airport Airport London Gatwick (LGW)
Arrival airport Airport Seattle-Tacoma (SEA)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Seattle-Tacoma
Flight destinations with a similar price