Latest Flight Deals from Seattle to London
Book one-way or return flights from Seattle to London from as little as AU$ 307. Choose from the popular airlines below and book your flight today!
- One way
- Return
- SEA07:0021h 5m1 stopLHR12:05Sun, May 19|Seattle - London|WestJetAU$ 307AU$ 62251% OFF51% OFFAU$ 622AU$ 307
- SEA07:0021h 5m1 stopLHR12:05Sun, May 12|Seattle - London|WestJetAU$ 319AU$ 62249% OFF49% OFFAU$ 622AU$ 319
- SEA06:1916h 1m1 stopLGW06:20Tue, May 7|Seattle - London|Alaska AirlinesAU$ 387AU$ 62238% OFF38% OFFAU$ 622AU$ 387
- SEA06:1923h 11m1 stopLGW13:30Sat, May 4|Seattle - London|Alaska AirlinesAU$ 396AU$ 396
- SEA07:0021h1 stopLHR12:00Fri, May 10|Seattle - London|WestJetAU$ 401AU$ 401
- SEA06:1916h 1m1 stopLGW06:20Mon, May 6|Seattle - London|Alaska AirlinesAU$ 407AU$ 407
- SEA07:0020h1 stopLGW11:00Thu, May 9|Seattle - London|Alaska AirlinesAU$ 410AU$ 410
- SEA21:4524h 35m1 stopLGW06:20Sun, May 12|Seattle - London|Alaska AirlinesAU$ 429AU$ 429
- SEA21:4024h 40m1 stopLGW06:20Sat, May 18|Seattle - London|Alaska AirlinesAU$ 444AU$ 444
- SEA07:0015h 20m1 stopLGW06:20Tue, May 7|Seattle - London|United AirlinesAU$ 467AU$ 467
- SEA13:003h 5mDirectLON14:00Fri, May 3|Seattle - London|WestJetFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Find more flights and airlines
Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Seattle to London.
- CheapestSEA07:0021h 5m1 transferLHR12:05Seattle-Tacoma International Airport - London Heathrow AirportSun, May 19WestJetAU$ 307
- SEA07:0041h 20m2 transferLTN08:20Seattle-Tacoma International Airport - London Luton AirportMon, May 27WestJetAU$ 420
- SEA07:0030h 25m2 transferSTN21:25Seattle-Tacoma International Airport - London Stansted AirportMon, May 27WestJetAU$ 432
- SEA07:0030h 25m2 transferSTN21:25Seattle-Tacoma International Airport - London Stansted AirportMon, May 27WestJetAU$ 432Find More Flights
How do I find the cheapest flights?
How to find a cheap flight from Seattle to London
Cheapest direct flight price | AU$ 307 |
---|---|
Cheapest return ticket price | AU$ 1,236 |
Off-season for travel | May |
Peak season for travel | October |
Flight distance | 7,711.56km |
Average flight time | 9 hours 23 minutes |
Popular airline | Finnair |
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