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Cheap flights from Seattle to London from £246

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:00 - 14:40SEA  Seattle/Tacoma Intl-LGW London Gatwick
11h 40m1 stop Reykjavik Keflavik Intl
Multiple Airlines Logo
20:10 - 19:13LGW  London Gatwick-SEA Seattle/Tacoma Intl
31h 03m2 stops Dublin Toronto Pearson Intl
£518Multiple Airlines
Wed, 7 Apr - Wed, 14 Apr
Icelandair Logo
15:35 - 10:55SEA  Seattle/Tacoma Intl-LGW London Gatwick
12h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:40 - 17:55LGW  London Gatwick-SEA Seattle/Tacoma Intl
34h 15m1 stop Reykjavik Keflavik Intl
£519Icelandair
Mon, 15 Mar - Sun, 21 Mar
Icelandair Logo
19:00 - 14:40SEA  Seattle/Tacoma Intl-LGW London Gatwick
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:40 - 17:55LGW  London Gatwick-SEA Seattle/Tacoma Intl
34h 15m1 stop Reykjavik Keflavik Intl
£521Icelandair
Mon, 3 May - Mon, 24 May
Multiple Airlines Logo
07:45 - 18:50SEA  Seattle/Tacoma Intl-LGW London Gatwick
27h 05m2 stops Toronto Pearson Intl Kastrup Copenhagen
Multiple Airlines Logo
19:30 - 12:00LGW  London Gatwick-SEA Seattle/Tacoma Intl
24h 30m2 stops Kastrup Copenhagen Frankfurt am Main
£523Multiple Airlines
Thu, 3 Dec - Wed, 9 Dec
Multiple Airlines Logo
14:35 - 16:20SEA  Seattle/Tacoma Intl-LGW London Gatwick
17h 45m2 stops Reykjavik Keflavik Intl Stockholm Arlanda
Multiple Airlines Logo
19:30 - 17:00LGW  London Gatwick-SEA Seattle/Tacoma Intl
29h 30m3 stops Kastrup Copenhagen Stockholm Arlanda Reykjavik Keflavik Intl
£523Multiple Airlines
Wed, 10 Feb - Tue, 16 Feb
Icelandair Logo
19:00 - 14:40SEA  Seattle/Tacoma Intl-LGW London Gatwick
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:40 - 20:40LGW  London Gatwick-SEA Seattle/Tacoma Intl
13h 00m1 stop Reykjavik Keflavik Intl
£526Icelandair
Sat, 10 Apr - Fri, 23 Apr
Icelandair Logo
19:00 - 14:40SEA  Seattle/Tacoma Intl-LGW London Gatwick
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:40 - 17:55LGW  London Gatwick-SEA Seattle/Tacoma Intl
34h 15m1 stop Reykjavik Keflavik Intl
£527Icelandair
Sat, 10 Apr - Thu, 15 Apr
Icelandair Logo
19:00 - 14:40SEA  Seattle/Tacoma Intl-LGW London Gatwick
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:40 - 17:55LGW  London Gatwick-SEA Seattle/Tacoma Intl
34h 15m1 stop Reykjavik Keflavik Intl
£528Icelandair
Sat, 10 Apr - Thu, 29 Apr
Multiple Airlines Logo
14:35 - 16:55SEA  Seattle/Tacoma Intl-LGW London Gatwick
18h 20m2 stops Reykjavik Keflavik Intl Oslo Gardermoen
Multiple Airlines Logo
19:30 - 17:00LGW  London Gatwick-SEA Seattle/Tacoma Intl
29h 30m3 stops Kastrup Copenhagen Oslo Gardermoen Reykjavik Keflavik Intl
£529Multiple Airlines
Wed, 2 Dec - Wed, 9 Dec
Multiple Airlines Logo
07:45 - 16:20SEA  Seattle/Tacoma Intl-LGW London Gatwick
24h 35m3 stops Toronto Pearson Intl Frankfurt am Main Stockholm Arlanda
Multiple Airlines Logo
11:15 - 13:00LGW  London Gatwick-SEA Seattle/Tacoma Intl
33h 45m3 stops Kastrup Copenhagen Stockholm Arlanda Munich Franz Josef Strauss
£530Multiple Airlines
Tue, 24 Nov - Tue, 1 Dec

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Icelandair flights from Seattle to London Gatwick Airport

Our best Icelandair deals on Seattle to London Gatwick Airport flight tickets
Icelandair
15 Mar
SEA15:35Seattle/Tacoma Intl
12h 20m
1 stop
LGW10:55London Gatwick
21 Mar
LGW14:40London Gatwick
34h 15m
1 stop
SEA17:55Seattle/Tacoma Intl
£519
Icelandair
3 May
SEA19:00Seattle/Tacoma Intl
11h 40m
1 stop
LGW14:40London Gatwick
24 May
LGW15:40London Gatwick
34h 15m
1 stop
SEA17:55Seattle/Tacoma Intl
£521
Icelandair
10 Apr
SEA19:00Seattle/Tacoma Intl
11h 40m
1 stop
LGW14:40London Gatwick
23 Apr
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
£526

Condor flights from Seattle to London Gatwick Airport

Our best Condor deals on Seattle to London Gatwick Airport flight tickets
Condor
16 Apr
SEA17:45Seattle/Tacoma Intl
13h 00m
1 stop
LGW14:45London Gatwick
25 Apr
LGW10:00London Gatwick
13h 45m
1 stop
SEA15:45Seattle/Tacoma Intl
£532
Condor
14 Feb
SEA15:00Seattle/Tacoma Intl
16h 00m
1 stop
LGW15:00London Gatwick
22 Feb
LGW10:25London Gatwick
13h 30m
1 stop
SEA15:55Seattle/Tacoma Intl
£547
Condor
22 Feb
SEA17:50Seattle/Tacoma Intl
17h 35m
1 stop
LGW19:25London Gatwick
1 Mar
LGW10:25London Gatwick
13h 30m
1 stop
SEA15:55Seattle/Tacoma Intl
£552

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to London Gatwick Airport that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Wed 7/4

19:00-14:40

1 stop11h 40m

London Gatwick

Wed 14/4

20:10-19:13

2 stops31h 03m

£518

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Mon 15/3

15:35-10:55

1 stop12h 20m

London Gatwick

Sun 21/3

14:40-17:55

1 stop34h 15m

£519

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Mon 3/5

19:00-14:40

1 stop11h 40m

London Gatwick

Mon 24/5

15:40-17:55

1 stop34h 15m

£521

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Thu 3/12

07:45-18:50

2 stops27h 05m

London Gatwick

Wed 9/12

19:30-12:00

2 stops24h 30m

£523

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Wed 10/2

14:35-16:20

2 stops17h 45m

London Gatwick

Tue 16/2

19:30-17:00

3 stops29h 30m

£523
Fastest return journey

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 10/4

19:00-14:40

1 stop11h 40m

London Gatwick

Fri 23/4

15:40-20:40

1 stop13h 00m

£526

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 10/4

19:00-14:40

1 stop11h 40m

London Gatwick

Thu 15/4

15:40-17:55

1 stop34h 15m

£527

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 10/4

19:00-14:40

1 stop11h 40m

London Gatwick

Thu 29/4

15:40-17:55

1 stop34h 15m

£528

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Wed 2/12

14:35-16:55

2 stops18h 20m

London Gatwick

Wed 9/12

19:30-17:00

3 stops29h 30m

£529

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Tue 24/11

07:45-16:20

3 stops24h 35m

London Gatwick

Tue 1/12

11:15-13:00

3 stops33h 45m

£530

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Seattle to London Gatwick Airport

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 airline that flies from Seattle/Tacoma Intl to London Gatwick?

Delta is the most popular carrier operating from Seattle/Tacoma Intl to London Gatwick

When to book flights from Seattle to London Gatwick Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to London Gatwick Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Seattle to London Gatwick Airport (SEA to LGW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to London Gatwick Airport

Best price found

£246

Fastest flight time

11h 40m

Direct flights

None
The best one-way flight to London Gatwick Airport from Seattle in the past 72 hours is £246. The best return flight deal from Seattle to London Gatwick Airport found on momondo in the last 72 hours is £518.
The fastest flight from Seattle to London Gatwick Airport takes 11h 40m
There are no direct flights from Seattle to London Gatwick Airport. There are no popular flight routes from Seattle to London Gatwick Airport.
Search flight deals

Frequently asked questions about flying from Seattle to London Gatwick Airport

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

    The straight-line distance from Seattle/Tacoma Intl to London Gatwick is 4798.7 mi. 11h 40m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to London Gatwick Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to London Gatwick Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to London Gatwick Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to London Gatwick Airport.

  • What documentation or ID do you need to fly to London Gatwick Airport?

    The travel and health documents you'll need for your trip to London Gatwick Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Gatwick Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Wembley
Gatwick
Milton Keynes
Southend-on-Sea
Luton
Ipswich
Slough
Maidstone
Folkestone
Hastings
Ilford
Canterbury
Colchester
Chichester
Hayes
Bedford
Guildford
Winchester
Worthing

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to London?

It is quick and easy to find Seattle to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Seattle to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to London.

I’m not ready to book a flight from Seattle to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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