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Cheap flights from Washington to London from £206

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 10/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
15:40 - 14:40
SEA
-
LGW
15h 00m
1 stop
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m
1 stop
£399Icelandair
Mon, 13 Apr - Mon, 20 Apr
Icelandair Logo
19:00 - 14:40
SEA
-
LGW
11h 40m
1 stop
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m
1 stop
£399Icelandair
Sat, 2 May - Sat, 16 May
Icelandair Logo
19:00 - 14:40
SEA
-
LGW
11h 40m
1 stop
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m
1 stop
£400Icelandair
Mon, 13 Apr - Mon, 20 Apr
Icelandair Logo
14:35 - 10:55
SEA
-
LGW
12h 20m
1 stop
Icelandair Logo
15:40 - 17:55
LGW
-
SEA
34h 15m
1 stop
£401Icelandair
Mon, 2 Mar - Wed, 1 Apr
Icelandair Logo
19:00 - 14:40
SEA
-
LGW
11h 40m
1 stop
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m
1 stop
£403Icelandair
Sat, 25 Apr - Wed, 29 Apr
Icelandair Logo
15:35 - 10:55
SEA
-
LGW
12h 20m
1 stop
Icelandair Logo
11:55 - 18:00
LGW
-
SEA
13h 05m
1 stop
£404Icelandair
Sun, 8 Mar - Fri, 13 Mar
Icelandair Logo
19:00 - 14:40
SEA
-
LGW
11h 40m
1 stop
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m
1 stop
£405Icelandair
Sun, 19 Apr - Fri, 1 May
Multiple Airlines Logo
15:45 - 18:30
PDX
-
LGW
19h 45m
2 stops
Multiple Airlines Logo
08:50 - 18:00
LGW
-
PDX
17h 10m
2 stops
£441Multiple Airlines
Tue, 24 Mar - Wed, 1 Apr
American Airlines Logo
06:00 - 07:30
GEG
-
LGW
17h 30m
2 stops
American Airlines Logo
11:20 - 11:44
LGW
-
GEG
31h 24m
2 stops
£613American Airlines
Wed, 4 Mar - Mon, 9 Mar
American Airlines Logo
06:00 - 09:00
GEG
-
LGW
19h 00m
2 stops
American Airlines Logo
11:20 - 11:44
LGW
-
GEG
31h 24m
2 stops
£614American Airlines
Wed, 4 Mar - Mon, 9 Mar

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
13 Apr
SEA15:40Seattle/Tacoma Intl
15h 00m
1 stop
LGW14:40London Gatwick
20 Apr
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
£399
Icelandair
2 May
SEA19:00Seattle/Tacoma Intl
11h 40m
1 stop
LGW14:40London Gatwick
16 May
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
£399
Icelandair
13 Apr
SEA19:00Seattle/Tacoma Intl
11h 40m
1 stop
LGW14:40London Gatwick
22 Apr
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
£400

SWISS flights from State of Washington to London Gatwick Airport

Our best SWISS deals on State of Washington to London Gatwick Airport flight tickets
SWISS
8 Apr
PDX13:39Portland
20h 11m
2 stops
LGW17:50London Gatwick
23 Apr
LGW09:25London Gatwick
45h 04m
2 stops
PDX22:29Portland
£505
SWISS
22 Feb
SEA10:55Seattle/Tacoma Intl
22h 55m
2 stops
LGW17:50London Gatwick
28 Feb
LGW18:40London Gatwick
36h 50m
2 stops
SEA23:30Seattle/Tacoma Intl
£581
SWISS
16 Feb
SEA10:55Seattle/Tacoma Intl
22h 55m
2 stops
LGW17:50London Gatwick
23 Feb
LGW18:40London Gatwick
36h 03m
2 stops
SEA22:43Seattle/Tacoma Intl
£617

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 8 February 2026.
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

Mon 13/4

15:40-14:40

1 stop15h 00m

London Gatwick

Mon 20/4

15:40-20:40

1 stop13h 00m

£399

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sat 2/5

19:00-14:40

1 stop11h 40m

London Gatwick

Sat 16/5

15:40-20:40

1 stop13h 00m

£399

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 13/4

19:00-14:40

1 stop11h 40m

London Gatwick

Mon 20/4

15:40-20:40

1 stop13h 00m

£400

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 2/3

14:35-10:55

1 stop12h 20m

London Gatwick

Wed 1/4

15:40-17:55

1 stop34h 15m

£401

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sat 25/4

19:00-14:40

1 stop11h 40m

London Gatwick

Wed 29/4

15:40-20:40

1 stop13h 00m

£403

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sun 8/3

15:35-10:55

1 stop12h 20m

London Gatwick

Fri 13/3

11:55-18:00

1 stop13h 05m

£404

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sun 19/4

19:00-14:40

1 stop11h 40m

London Gatwick

Fri 1/5

15:40-20:40

1 stop13h 00m

£405

PortlandLondon

PDX - LGW

PDXLGW

Portland

Tue 24/3

15:45-18:30

2 stops19h 45m

London Gatwick

Wed 1/4

08:50-18:00

2 stops17h 10m

£441

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Wed 4/3

06:00-07:30

2 stops17h 30m

London Gatwick

Mon 9/3

11:20-11:44

2 stops31h 24m

£613

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Wed 4/3

06:00-09:00

2 stops19h 00m

London Gatwick

Mon 9/3

11:20-11:44

2 stops31h 24m

£614

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 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 November. Flight prices, which tend to average around £381, are often lower during this time because this is during the off-season. If you don’t want to visit London Gatwick Airport in November, then you should wait until January to fly from State of Washington, when ticket prices are also cheap, with an average price of £397.

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

Fastest flight time

11h 35m

Direct flights

None
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. There are no popular flight routes from State of Washington to 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
Gatwick
Slough
Maidstone
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Wembley
Dover
Folkestone
Colchester
Bedford
Worthing
Ramsgate

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.

An easier way to manage your London Gatwick Airport trip

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