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Cheap flights from Washington to London from £168

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to London departing on 4/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Logo
20:05 - 17:20SEA-LGW
13h 15m1 stop
Logo
11:15 - 18:20LGW-SEA
15h 05m1 stop
£356
Find Deal
Wed, 26 Nov - Wed, 3 Dec
Icelandair Logo
15:45 - 14:35SEA-LGW
14h 50m1 stop
Icelandair Logo
15:40 - 17:50LGW-SEA
34h 10m1 stop
£357Icelandair
Find Deal
Mon, 6 Oct - Sun, 19 Oct
Icelandair Logo
15:45 - 14:35SEA-LGW
14h 50m1 stop
Icelandair Logo
15:40 - 17:50LGW-SEA
34h 10m1 stop
£358Icelandair
Find Deal
Mon, 6 Oct - Sun, 19 Oct
Delta Logo
15:15 - 10:00SEA-LGW
34h 45m2 stops
Delta Logo
12:00 - 23:59LGW-SEA
19h 59m2 stops
£366Delta
Find Deal
Mon, 25 Aug - Thu, 4 Sep
Delta Logo
05:30 - 10:00SEA-LGW
44h 30m2 stops
Delta Logo
12:00 - 23:15LGW-SEA
19h 15m1 stop
£371Delta
Find Deal
Sun, 24 Aug - Thu, 4 Sep
Delta Logo
15:54 - 10:00SEA-LGW
34h 06m2 stops
Delta Logo
12:00 - 08:55LGW-SEA
28h 55m2 stops
£374Delta
Find Deal
Tue, 26 Aug - Thu, 4 Sep
SWISS Logo
16:25 - 17:50SEA-LGW
17h 25m1 stop
SWISS Logo
18:35 - 18:36LGW-SEA
32h 01m2 stops
£382SWISS
Find Deal
Mon, 8 Sep - Wed, 24 Sep
SWISS Logo
15:25 - 17:50SEA-LGW
18h 25m2 stops
SWISS Logo
18:40 - 20:59LGW-SEA
34h 19m2 stops
£392SWISS
Find Deal
Wed, 21 Jan - Thu, 29 Jan
American Airlines Logo
05:38 - 07:50PDX-LGW
18h 12m2 stops
American Airlines Logo
10:40 - 00:05LGW-PDX
21h 25m2 stops
£493American Airlines
Find Deal
Sun, 14 Sep - Tue, 30 Sep
American Airlines Logo
15:05 - 07:30GEG-LGW
32h 25m2 stops
American Airlines Logo
12:30 - 12:32LGW-GEG
32h 02m2 stops
£757American Airlines
Find Deal
Fri, 21 Nov - Sat, 29 Nov

Icelandair flights from State of Washington to London Gatwick Airport

Our best Icelandair deals on State of Washington to London Gatwick Airport flight tickets
Icelandair
6 Oct
SEA15:45Seattle/Tacoma Intl
14h 50m
1 stop
LGW14:35London Gatwick
19 Oct
LGW15:40London Gatwick
34h 10m
1 stop
SEA17:50Seattle/Tacoma Intl
£357
Find similar
Icelandair
6 Oct
SEA15:45Seattle/Tacoma Intl
14h 50m
1 stop
LGW14:35London Gatwick
19 Oct
LGW15:40London Gatwick
34h 10m
1 stop
SEA17:50Seattle/Tacoma Intl
£358
Find similar
Icelandair
9 Sept
SEA19:00Seattle/Tacoma Intl
11h 40m
1 stop
LGW14:40London Gatwick
17 Sept
LGW15:35London Gatwick
34h 15m
1 stop
SEA17:50Seattle/Tacoma Intl
£359
Find similar

JetBlue flights from State of Washington to London Gatwick Airport

Our best JetBlue deals on State of Washington to London Gatwick Airport flight tickets
JetBlue
21 Aug
PDX12:21Portland
13h 14m
1 stop
LGW09:35London Gatwick
27 Aug
LGW12:10London Gatwick
31h 01m
1 stop
PDX11:11Portland
£557
Find similar
JetBlue
13 Aug
PDX23:40Portland
25h 55m
1 stop
LGW09:35London Gatwick
20 Aug
LGW12:10London Gatwick
31h 01m
1 stop
PDX11:11Portland
£705
Find similar
JetBlue
13 Aug
PDX23:40Portland
25h 55m
1 stop
LGW09:35London Gatwick
19 Aug
LGW12:10London Gatwick
31h 01m
1 stop
PDX11:11Portland
£728
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from State of Washington to London Gatwick Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 12 August 2025.
Use the filters below to find and compare flights from Washington to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Wed 26/11

20:05-17:20

1 stop13h 15m

London Gatwick

Wed 3/12

11:15-18:20

1 stop15h 05m

£356

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 6/10

15:45-14:35

1 stop14h 50m

London Gatwick

Sun 19/10

15:40-17:50

1 stop34h 10m

£357

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 6/10

15:45-14:35

1 stop14h 50m

London Gatwick

Sun 19/10

15:40-17:50

1 stop34h 10m

£358

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 25/8

15:15-10:00

2 stops34h 45m

London Gatwick

Thu 4/9

12:00-23:59

2 stops19h 59m

£366

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sun 24/8

05:30-10:00

2 stops44h 30m

London Gatwick

Thu 4/9

12:00-23:15

1 stop19h 15m

£370

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 26/8

15:54-10:00

2 stops34h 06m

London Gatwick

Thu 4/9

12:00-08:55

2 stops28h 55m

£374

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 8/9

16:25-17:50

1 stop17h 25m

London Gatwick

Wed 24/9

18:35-18:36

2 stops32h 01m

£382

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Wed 21/1

15:25-17:50

2 stops18h 25m

London Gatwick

Thu 29/1

18:40-20:59

2 stops34h 19m

£392

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sun 14/9

05:38-07:50

2 stops18h 12m

London Gatwick

Tue 30/9

10:40-00:05

2 stops21h 25m

£493

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Fri 21/11

15:05-07:30

2 stops32h 25m

London Gatwick

Sat 29/11

12:30-12:32

2 stops32h 02m

£757

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from State of Washington 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 month to fly to London Gatwick Airport?

The cheapest month to fly to London Gatwick Airport from State of Washington is in January. Flight prices, which tend to average around £414, are often lower during this time because this is during the off-season. If you don’t want to visit London Gatwick Airport in January, then you should wait until April to fly from State of Washington, when ticket prices are also cheap, with an average price of £419.

Cheap State of Washington to London Gatwick Airport flight deals and tips

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

Best price found

£168

Fastest flight time

11h 35m

Direct flights

None
The best one-way flight to London Gatwick Airport from State of Washington in the past 72 hours is £168. The best return flight deal from State of Washington to London Gatwick Airport found on momondo in the last 72 hours is £356.
The fastest flight from State of Washington to London Gatwick Airport takes 11h 35m
There are no direct flights from State of Washington to London Gatwick Airport. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - London Gatwick Airport, Portland Airport - London Gatwick Airport and Bellingham Airport - London Gatwick Airport.
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  • When did momondo last update prices for flights from Washington to London Gatwick Airport?

    Prices for flights from Washington to London Gatwick Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Washington to London Gatwick Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington 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
Milton Keynes
Luton
Slough
Maidstone
Southend-on-Sea
Canterbury
Gatwick
Ipswich
Ilford
Guildford
Colchester
Dartford
Hounslow
Worthing
Dover
Chelmsford
Hayes
Winchester
Bedford

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to London. momondo saves you time and could save you money on your trip.

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

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

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

Once all potential Washington to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Washington to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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