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Cheap flights from Washington to London from £185

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 27/4. 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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:40 - 19:15
SEA
-
LGW
19h 35m
2 stops
Multiple Airlines Logo
20:45 - 17:55
LGW
-
SEA
29h 10m
3 stops
£455Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Multiple Airlines Logo
15:40 - 19:15
SEA
-
LGW
19h 35m
2 stops
Multiple Airlines Logo
20:45 - 20:40
LGW
-
SEA
31h 55m
3 stops
£456Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Multiple Airlines Logo
15:40 - 19:15
SEA
-
LGW
19h 35m
2 stops
Multiple Airlines Logo
20:45 - 20:40
LGW
-
SEA
31h 55m
3 stops
£457Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Multiple Airlines Logo
19:00 - 22:20
SEA
-
LGW
19h 20m
2 stops
Multiple Airlines Logo
06:25 - 20:40
LGW
-
SEA
22h 15m
2 stops
£460Multiple Airlines
Tue, 14 Apr - Tue, 28 Apr
Multiple Airlines Logo
19:00 - 22:20
SEA
-
LGW
19h 20m
2 stops
Multiple Airlines Logo
06:25 - 17:55
LGW
-
SEA
19h 30m
2 stops
£461Multiple Airlines
Tue, 21 Apr - Tue, 28 Apr
Multiple Airlines Logo
19:00 - 22:20
SEA
-
LGW
19h 20m
2 stops
Multiple Airlines Logo
06:25 - 20:40
LGW
-
SEA
22h 15m
2 stops
£462Multiple Airlines
Tue, 14 Apr - Tue, 21 Apr
Icelandair Logo
15:30 - 11:45
PDX
-
LGW
12h 15m
1 stop
Icelandair Logo
15:40 - 18:00
LGW
-
PDX
34h 20m
1 stop
£522Icelandair
Mon, 27 Apr - Tue, 12 May
Icelandair Logo
15:30 - 11:45
PDX
-
LGW
12h 15m
1 stop
Icelandair Logo
15:40 - 18:00
LGW
-
PDX
34h 20m
1 stop
£526Icelandair
Mon, 27 Apr - Tue, 12 May
Icelandair Logo
15:30 - 11:45
PDX
-
LGW
12h 15m
1 stop
Icelandair Logo
15:40 - 18:00
LGW
-
PDX
34h 20m
1 stop
£530Icelandair
Mon, 27 Apr - Tue, 12 May
Delta Logo
15:30 - 16:00
GEG
-
LGW
16h 30m
2 stops
Delta Logo
10:25 - 21:02
LGW
-
GEG
18h 37m
2 stops
£764Delta
Wed, 22 Apr - Wed, 29 Apr

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
20 Apr
SEA19:00Seattle/Tacoma Intl
11h 40m
1 stop
LGW14:40London Gatwick
27 Apr
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
£487
Icelandair
21 Apr
SEA19:00Seattle/Tacoma Intl
11h 40m
1 stop
LGW14:40London Gatwick
27 Apr
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
£518
Icelandair
27 Apr
PDX15:30Portland
12h 15m
1 stop
LGW11:45London Gatwick
12 May
LGW15:40London Gatwick
34h 20m
1 stop
PDX18:00Portland
£522

Delta flights from State of Washington to London Gatwick Airport

Our best Delta deals on State of Washington to London Gatwick Airport flight tickets
Delta
7 Apr
SEA13:30Seattle/Tacoma Intl
11h 55m
1 stop
LGW09:25London Gatwick
14 Apr
LGW10:35London Gatwick
15h 03m
1 stop
SEA17:38Seattle/Tacoma Intl
£680
Delta
4 Apr
SEA18:40Seattle/Tacoma Intl
13h 20m
1 stop
LGW16:00London Gatwick
15 Apr
LGW10:25London Gatwick
15h 13m
1 stop
SEA17:38Seattle/Tacoma Intl
£717
Delta
22 Apr
GEG15:30Spokane
16h 30m
2 stops
LGW16:00London Gatwick
29 Apr
LGW10:25London Gatwick
18h 37m
2 stops
GEG21:02Spokane
£764

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 25 March 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

Cheapest return flight

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 20/4

15:40-19:15

2 stops19h 35m

London Gatwick

Mon 27/4

20:45-17:55

3 stops29h 10m

£455

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 20/4

15:40-19:15

2 stops19h 35m

London Gatwick

Mon 27/4

20:45-20:40

3 stops31h 55m

£456

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 20/4

15:40-19:15

2 stops19h 35m

London Gatwick

Mon 27/4

20:45-20:40

3 stops31h 55m

£457

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 14/4

19:00-22:20

2 stops19h 20m

London Gatwick

Tue 28/4

06:25-20:40

2 stops22h 15m

£460

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 21/4

19:00-22:20

2 stops19h 20m

London Gatwick

Tue 28/4

06:25-17:55

2 stops19h 30m

£461

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 14/4

19:00-22:20

2 stops19h 20m

London Gatwick

Tue 21/4

06:25-20:40

2 stops22h 15m

£462

PortlandLondon

PDX - LGW

PDXLGW

Portland

Mon 27/4

15:30-11:45

1 stop12h 15m

London Gatwick

Tue 12/5

15:40-18:00

1 stop34h 20m

£522

PortlandLondon

PDX - LGW

PDXLGW

Portland

Mon 27/4

15:30-11:45

1 stop12h 15m

London Gatwick

Tue 12/5

15:40-18:00

1 stop34h 20m

£526

PortlandLondon

PDX - LGW

PDXLGW

Portland

Mon 27/4

15:30-11:45

1 stop12h 15m

London Gatwick

Tue 12/5

15:40-18:00

1 stop34h 20m

£530
Fastest return journey

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Wed 22/4

15:30-16:00

2 stops16h 30m

London Gatwick

Wed 29/4

10:25-21:02

2 stops18h 37m

£764

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 £387, 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 £404.

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
Maidstone
Slough
Southend-on-Sea
Ipswich
Wembley
Canterbury
Ilford
Guildford
Hayes
Chelmsford
Dover
Folkestone
Ramsgate
Chichester
Bedford
Worthing

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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