Cheap flights from London to Seattle from €360

Return
1 adult
Economy
From?
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Sun 30/1
Sun 6/2

Flight information for London to Seattle
(LON to SEA)

Find info about flight duration, direct flights, and airports for your flight from London to Seattle
Fastest flight time10h 00mThe fastest flight from London to Seattle takes 10h 00m
Direct flightsNoneThere are no direct flights from London to Seattle. Popular non-direct routes for this connection are London Gatwick Airport - Seattle/Tacoma Intl Airport and London Heathrow Airport - Seattle/Tacoma Intl Airport.
Airports in Seattle3 airportsThere are 3 airports near Seattle: Seattle King County/Boeing (BFI), Seattle Lake Union Spb (LKE), Seattle/Tacoma Intl (SEA)

How to get the cheapest flight ticket from London to Seattle

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 London to Seattle?

February

The cheapest time of year to fly to Seattle from London is February. The most expensive is July.

What is the cheapest day to depart London for Seattle?

Friday

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

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

in the morning

London to Seattle flights are approximately 5% more expensive at midday than in the morning

What is the cheapest London to Seattle flight route?

London Heathrow - Seattle/Tacoma Intl

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

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

51 days before

The cheapest time to buy a flight from London to Seattle is approximately 51 days to departure


Easily compare return flights from London to Seattle

Below you can see the best fares for your return flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from London to Seattle by changing tabs
United Airlines
5 Mar
LHR01:50London Heathrow
35h 19m
2 stops
SEA13:09Seattle/Tacoma Intl
19 Mar
SEA15:44Seattle/Tacoma Intl
29h 56m
2 stops
LHR21:40London Heathrow
Icelandair
29 Mar
LGW09:05London Gatwick
12h 50m
1 stop
SEA21:55Seattle/Tacoma Intl
12 Apr
SEA11:50Seattle/Tacoma Intl
12h 00m
1 stop
LGW23:50London Gatwick
Lufthansa
23 Mar
LHR02:30London Heathrow
13h 50m
1 stop
SEA16:20Seattle/Tacoma Intl
31 Mar
SEA07:10Seattle/Tacoma Intl
14h 50m
2 stops
LHR22:00London Heathrow
Delta
1 Apr
LHR05:55London Heathrow
13h 50m
1 stop
SEA19:45Seattle/Tacoma Intl
9 Apr
SEA15:10Seattle/Tacoma Intl
9h 45m
LHR00:55London Heathrow
Multiple Airlines
17 Feb
LHR01:50London Heathrow
19h 39m
2 stops
SEA21:29Seattle/Tacoma Intl
25 Feb
SEA03:00Seattle/Tacoma Intl
14h 20m
1 stop
LHR17:20London Heathrow
KLM
13 Feb
LHR01:30London Heathrow
13h 30m
1 stop
SEA15:00Seattle/Tacoma Intl
24 Feb
SEA02:35Seattle/Tacoma Intl
15h 55m
1 stop
LHR18:30London Heathrow

Find the cheapest one-way flights from London to Seattle

If you're looking for one-way flights from London to Seattle, view some of our deals below provided by Icelandair, TAP AIR PORTUGAL and WestJet
WestJet
15 Feb
LGW08:20London Gatwick
26h 46m
2 stops
SEA11:06Seattle/Tacoma Intl
Multiple Airlines
11 Feb
LHR14:55London Heathrow
32h 35m
2 stops
SEA23:30Seattle/Tacoma Intl
TAP AIR PORTUGAL
3 Feb
LHR11:30London Heathrow
37h 29m
2 stops
SEA00:59Seattle/Tacoma Intl

Search last-minute flights to Seattle from London

Find and compare return flight prices for your last-minute flight from London to Seattle
Icelandair
1 Feb
LHR07:15London Heathrow
12h 40m
1 stop
SEA19:55Seattle/Tacoma Intl
5 Mar
SEA09:50Seattle/Tacoma Intl
12h 00m
1 stop
LHR21:50London Heathrow
Lufthansa
1 Feb
LHR06:10London Heathrow
31h 13m
2 stops
SEA13:23Seattle/Tacoma Intl
5 Mar
SEA09:50Seattle/Tacoma Intl
35h 20m
2 stops
LHR21:10London Heathrow
SWISS
31 Jan
LHR03:50London Heathrow
22h 13m
2 stops
SEA02:03Seattle/Tacoma Intl
7 Feb
SEA06:10Seattle/Tacoma Intl
17h 50m
2 stops
LHR00:00London Heathrow
British Airways
1 Feb
LHR08:10London Heathrow
10h 05m
SEA18:15Seattle/Tacoma Intl
22 Feb
SEA06:55Seattle/Tacoma Intl
13h 35m
1 stop
LHR20:30London Heathrow
Multiple Airlines
1 Feb
LHR08:10London Heathrow
10h 05m
SEA18:15Seattle/Tacoma Intl
5 Mar
SEA02:18Seattle/Tacoma Intl
15h 52m
1 stop
LHR18:10London Heathrow
Delta
3 Feb
LHR01:30London Heathrow
13h 30m
1 stop
SEA15:00Seattle/Tacoma Intl
4 Mar
SEA11:05Seattle/Tacoma Intl
9h 25m
LHR20:30London Heathrow

Icelandair flights from London to Seattle

Our best Icelandair deals on London to Seattle flight tickets
Icelandair
29 Mar
LGW09:05London Gatwick
12h 50m
1 stop
SEA21:55Seattle/Tacoma Intl
12 Apr
SEA11:50Seattle/Tacoma Intl
12h 00m
1 stop
LGW23:50London Gatwick
Icelandair
29 Mar
LGW09:05London Gatwick
12h 50m
1 stop
SEA21:55Seattle/Tacoma Intl
12 Apr
SEA11:50Seattle/Tacoma Intl
12h 00m
1 stop
LGW23:50London Gatwick
Icelandair
4 Apr
LGW09:05London Gatwick
12h 50m
1 stop
SEA21:55Seattle/Tacoma Intl
12 Apr
SEA11:50Seattle/Tacoma Intl
12h 00m
1 stop
LGW23:50London Gatwick

Qatar Airways flights from London to Seattle

Our best Qatar Airways deals on London to Seattle flight tickets
Qatar Airways
1 Feb
LGW08:45London Gatwick
29h 50m
1 stop
SEA14:35Seattle/Tacoma Intl
22 Feb
SEA11:40Seattle/Tacoma Intl
28h 50m
1 stop
LGW16:30London Gatwick
€1,259
Find similar
Qatar Airways
1 Feb
LGW08:45London Gatwick
29h 50m
1 stop
SEA14:35Seattle/Tacoma Intl
5 Mar
SEA11:40Seattle/Tacoma Intl
28h 50m
1 stop
LGW16:30London Gatwick
€1,271
Find similar
Qatar Airways
1 Feb
LGW08:45London Gatwick
29h 50m
1 stop
SEA14:35Seattle/Tacoma Intl
5 Mar
SEA11:40Seattle/Tacoma Intl
28h 50m
1 stop
LGW16:30London Gatwick
€1,276
Find similar

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

    Some of our partner airlines flying from London to Seattle/Tacoma Intl are adapting new policies due to the global impact of COVID-19. One of the airlines that may be waiving their change fees is British Airways. You can search for the full list of airlines such as British Airways that are offering this flexibility.

  • How far is London to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 7694.7 km away from London. Flights usually cover this in 12h 40m, depending on flying conditions and air traffic around both airports.