Search flights from Seattle (SEA) to London (LON)
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Cheapest flights to London
The cheapest flights available in the next 60 days – prices are updated regularly
- Wed 3 DecUS$280.58One wayEconomy1 traveller
- Tue 9 DecUS$285.34One wayEconomy1 traveller
- Mon 8 DecUS$287.13One wayEconomy1 traveller
Flying from Seattle to London: things to know
The most popular route is from Sea-Tac Airport in Seattle to London Heathrow Airport in London. On average this flight takes 11 hours 10 minutes one way and costs US$1,636 for the round trip.
Most popular route | Sea-Tac Airport (SEA) to London Heathrow Airport (LHR) |
---|---|
Average flight time | 11 hours 10 minutes |
Average round-trip price | US$1,636 |
Fly from Seattle to London | 20 airlines |
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Airlines that fly from Seattle to London
Airline options may vary according to recently booked flights and your search terms
- Icelandair
- Virgin Atlantic
- British Airways
- Iberia
- Westjet
- Aer Lingus
- American Airlines
- Air Canada
- Scandinavian Airlines
- United Airlines
- Air France
- Lufthansa
- Finnair
- KLM
- Condor
- Turkish Airlines
Frequently asked questions
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