Cheap flights from Seattle to London

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Sun 27/6

Flight information for Seattle to London
(SEA to LON)

Find info about flight duration, direct flights, and airports for your flight from Seattle to London
Best price found£313The best flight deal from Seattle to London found on momondo in the last 72 hours is £313
Fastest flight time9h 20mThe fastest flight from Seattle to London takes 9h 20m
Direct flightsNoneThere are no direct flights from Seattle to London. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - London Heathrow Airport, Seattle/Tacoma Intl Airport - London Gatwick Airport and Seattle/Tacoma Intl Airport - London Stansted Airport.
Airports in London6 airportsThere are 6 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW), London Southend (SEN)

How to get the cheapest flight ticket from Seattle to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from Seattle to London?

October

The cheapest time of year to fly to London from Seattle is October. The most expensive is December.

What is the cheapest day to depart Seattle for London?

Tuesday

The cheapest day of the week is usually Tuesday. The most expensive is usually Friday.

When is the cheapest time to fly from Seattle to London?

in the morning

Seattle to London flights are approximately 22% more expensive in the evening than in the morning

What is the cheapest airline that flies to London from Seattle?

Icelandair

American Airlines, Delta, and Iberia are the most popular carriers operating from Seattle to London

What is the cheapest Seattle to London flight route?

Seattle/Tacoma Intl - London Luton

Fly from Seattle/Tacoma Intl to London Luton for the best Seattle - London flight prices

How far in advance should you book Seattle to London flights?

60 days before

The cheapest time to buy a flight from Seattle to London is approximately 60 days to departure


Seattle to London flight comparison made easy

Below you can see the best fares for your route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Seattle to London by changing tabs
Multiple Airlines
9 Nov
SEA09:50Seattle/Tacoma Intl
14h 25m
2 stops
STN00:15London Stansted
24 Nov
STN01:30London Stansted
18h 25m
2 stops
SEA19:55Seattle/Tacoma Intl
Multiple Airlines
1 Nov
SEA11:50Seattle/Tacoma Intl
18h 20m
2 stops
LTN06:10London Luton
9 Nov
LTN01:30London Luton
18h 25m
2 stops
SEA19:55Seattle/Tacoma Intl
Multiple Airlines
4 Oct
SEA11:50Seattle/Tacoma Intl
18h 05m
2 stops
LTN05:55London Luton
13 Oct
LTN02:30London Luton
19h 25m
2 stops
SEA21:55Seattle/Tacoma Intl
Multiple Airlines
30 Aug
SEA11:50Seattle/Tacoma Intl
18h 05m
2 stops
LTN05:55London Luton
15 Sep
LTN02:30London Luton
19h 25m
2 stops
SEA21:55Seattle/Tacoma Intl
Multiple Airlines
10 Nov
SEA09:50Seattle/Tacoma Intl
14h 25m
2 stops
STN00:15London Stansted
24 Nov
STN01:30London Stansted
18h 25m
2 stops
SEA19:55Seattle/Tacoma Intl
Multiple Airlines
3 Nov
SEA11:50Seattle/Tacoma Intl
18h 20m
2 stops
LTN06:10London Luton
10 Nov
LTN01:30London Luton
18h 25m
2 stops
SEA19:55Seattle/Tacoma Intl

Find the cheapest one-way flights from Seattle to London

If you're looking for one-way flights from Seattle to London, view some of our deals below provided by WestJet
Multiple Airlines
19 Sep
SEA09:55Seattle/Tacoma Intl
14h 45m
1 stop
LGW00:40London Gatwick
WestJet
8 Sep
SEA06:29Seattle/Tacoma Intl
15h 56m
2 stops
LGW22:25London Gatwick
Multiple Airlines
8 Sep
SEA17:25Seattle/Tacoma Intl
57h 05m
2 stops
LHR02:30London Heathrow

Best airlines flying from Seattle to London

Compare and see reviews for airlines that fly from Seattle to London with momondo
AirlineRatingFree cancellationPrice
Delta
PriceFrom £280
Free cancellation
Rating
8.1
Icelandair
PriceFrom £297
Free cancellation
Rating
7.5
Virgin Atlantic
PriceFrom £313
Free cancellation
Rating
9.3
American Airlines
PriceFrom £317
Free cancellation
Rating
7.2
Iberia
PriceFrom £319
Free cancellation
Rating
7.4
British Airways
PriceFrom £345
Free cancellation
Rating
7.5
KLM
PriceFrom £346
Free cancellation
Rating
7.9
Norwegian Air UK
PriceFrom £362
Free cancellation
Rating
2.0

  • Are airlines flying from Seattle/Tacoma Intl to London offering flexible cancellation due to COVID-19?

    Due to the global impact of COVID-19, some of our airline partners operating flights from Seattle/Tacoma Intl to London, such as Virgin Atlantic, British Airways, and Icelandair may have flexible cancellation policies in place. Use our site to search for all of the airlines offering this flexibility to you.


Alternative routes for Seattle to London

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Seattle to Manchester Flights
Fastest flight time12h 00m
Cheapest price£407
Seattle to Birmingham Flights
Fastest flight time16h 51m
Cheapest price£554
Spokane to London Flights
Fastest flight time15h 30m
Cheapest price£596
Seattle to Newcastle upon Tyne Flights
Fastest flight time13h 30m
Cheapest price£679
Seattle to Leeds Flights
Fastest flight time12h 00m
Cheapest price£709
Pasco to London Flights
Fastest flight time16h 24m
Cheapest price£754
Seattle to Darlington Flights
Fastest flight time12h 05m
Cheapest price£789
Bellingham to London Flights
Fastest flight time27h 05m
Cheapest price£792
Seattle to Bristol Flights
Fastest flight time18h 35m
Cheapest price£836
Seattle to Liverpool Flights
Fastest flight time42h 30m
Cheapest price£964
Spokane to Manchester Flights
Fastest flight time18h 45m
Cheapest price£987
Seattle to Southampton Flights
Fastest flight time19h 20m
Cheapest price£992