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Cheap flights from Washington to London from $281

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 3/10. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
7:00 pm - 2:40 pm
SEA
-
LGW
11h 40m
1 stop
Icelandair Logo
3:40 pm - 8:40 pm
LGW
-
SEA
13h 00m
1 stop
$542Icelandair
Fri, Apr 24 - Mon, Apr 27
Icelandair Logo
7:00 pm - 2:40 pm
SEA
-
LGW
11h 40m
1 stop
Icelandair Logo
3:40 pm - 8:40 pm
LGW
-
SEA
13h 00m
1 stop
$543Icelandair
Mon, Apr 13 - Mon, Apr 20
Icelandair Logo
3:40 pm - 2:40 pm
SEA
-
LGW
15h 00m
1 stop
Icelandair Logo
3:40 pm - 8:40 pm
LGW
-
SEA
13h 00m
1 stop
$544Icelandair
Mon, Apr 13 - Wed, Apr 22
Icelandair Logo
7:00 pm - 2:40 pm
SEA
-
LGW
11h 40m
1 stop
Icelandair Logo
3:40 pm - 8:40 pm
LGW
-
SEA
13h 00m
1 stop
$545Icelandair
Mon, Apr 13 - Mon, Apr 20
Icelandair Logo
2:35 pm - 10:55 am
SEA
-
LGW
12h 20m
1 stop
Icelandair Logo
3:40 pm - 5:55 pm
LGW
-
SEA
34h 15m
1 stop
$546Icelandair
Mon, Mar 2 - Wed, Apr 1
Icelandair Logo
7:00 pm - 2:40 pm
SEA
-
LGW
11h 40m
1 stop
Icelandair Logo
3:40 pm - 8:40 pm
LGW
-
SEA
13h 00m
1 stop
$549Icelandair
Sat, Apr 25 - Wed, Apr 29
American Airlines Logo
6:00 am - 9:00 am
GEG
-
LGW
19h 00m
2 stops
American Airlines Logo
12:30 pm - 11:44 am
LGW
-
GEG
30h 14m
2 stops
$626American Airlines
Wed, Mar 4 - Mon, Mar 9
American Airlines Logo
6:00 am - 7:30 am
GEG
-
LGW
17h 30m
2 stops
American Airlines Logo
11:20 am - 11:44 am
LGW
-
GEG
31h 24m
2 stops
$835American Airlines
Wed, Mar 4 - Mon, Mar 9
American Airlines Logo
6:00 am - 9:00 am
GEG
-
LGW
19h 00m
2 stops
American Airlines Logo
12:30 pm - 4:54 pm
LGW
-
GEG
35h 24m
2 stops
$836American Airlines
Wed, Mar 4 - Mon, Mar 9
Multiple Airlines Logo
7:06 pm - 10:55 am
GEG
-
LGW
31h 49m
2 stops
Multiple Airlines Logo
11:55 am - 11:01 pm
LGW
-
GEG
19h 06m
2 stops
$894Multiple Airlines
Sun, Mar 1 - Fri, Mar 6

American Airlines flights from State of Washington to London Gatwick Airport

Our best American Airlines deals on State of Washington to London Gatwick Airport flight tickets
American Airlines
Mar 4
GEG6:00 amSpokane
19h 00m
2 stops
LGW9:00 amLondon Gatwick
Mar 9
LGW12:30 pmLondon Gatwick
30h 14m
2 stops
GEG11:44 amSpokane
$626
American Airlines
Mar 4
GEG6:00 amSpokane
17h 30m
2 stops
LGW7:30 amLondon Gatwick
Mar 9
LGW11:20 amLondon Gatwick
31h 24m
2 stops
GEG11:44 amSpokane
$835
American Airlines
Mar 4
GEG6:00 amSpokane
19h 00m
2 stops
LGW9:00 amLondon Gatwick
Mar 9
LGW12:30 pmLondon Gatwick
35h 24m
2 stops
GEG4:54 pmSpokane
$836

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
Apr 24
SEA7:00 pmSeattle/Tacoma Intl
11h 40m
1 stop
LGW2:40 pmLondon Gatwick
Apr 27
LGW3:40 pmLondon Gatwick
13h 00m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$542
Icelandair
Apr 13
SEA7:00 pmSeattle/Tacoma Intl
11h 40m
1 stop
LGW2:40 pmLondon Gatwick
Apr 20
LGW3:40 pmLondon Gatwick
13h 00m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$543
Icelandair
Apr 13
SEA3:40 pmSeattle/Tacoma Intl
15h 00m
1 stop
LGW2:40 pmLondon Gatwick
Apr 22
LGW3:40 pmLondon Gatwick
13h 00m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$544

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated February 7, 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

Fri 4/24

7:00 pm-2:40 pm

1 stop11h 40m

London Gatwick

Mon 4/27

3:40 pm-8:40 pm

1 stop13h 00m

$542

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 4/13

7:00 pm-2:40 pm

1 stop11h 40m

London Gatwick

Mon 4/20

3:40 pm-8:40 pm

1 stop13h 00m

$543

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 4/13

3:40 pm-2:40 pm

1 stop15h 00m

London Gatwick

Wed 4/22

3:40 pm-8:40 pm

1 stop13h 00m

$544

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 4/13

7:00 pm-2:40 pm

1 stop11h 40m

London Gatwick

Mon 4/20

3:40 pm-8:40 pm

1 stop13h 00m

$545

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 3/2

2:35 pm-10:55 am

1 stop12h 20m

London Gatwick

Wed 4/1

3:40 pm-5:55 pm

1 stop34h 15m

$546

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sat 4/25

7:00 pm-2:40 pm

1 stop11h 40m

London Gatwick

Wed 4/29

3:40 pm-8:40 pm

1 stop13h 00m

$549

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Wed 3/4

6:00 am-9:00 am

2 stops19h 00m

London Gatwick

Mon 3/9

12:30 pm-11:44 am

2 stops30h 14m

$626

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Wed 3/4

6:00 am-7:30 am

2 stops17h 30m

London Gatwick

Mon 3/9

11:20 am-11:44 am

2 stops31h 24m

$835

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Wed 3/4

6:00 am-9:00 am

2 stops19h 00m

London Gatwick

Mon 3/9

12:30 pm-4:54 pm

2 stops35h 24m

$836

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Sun 3/1

7:06 pm-10:55 am

2 stops31h 49m

London Gatwick

Fri 3/6

11:55 am-11:01 pm

2 stops19h 06m

$894

Flights are sorted by cheapest round-trip 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?

In general, November is the cheapest month to fly from State of Washington to London Gatwick Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $519. If you are unable to visit London Gatwick Airport during the month of November, then departing from State of Washington during the month January is also very affordable. Most momondo users find prices during this month for around $541.

Can stopping save me money on State of Washington to London Gatwick Airport flights?

You could potentially save up to 9% on your flight if you consider stops on a State of Washington to London Gatwick Airport flight.

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.
Search flight deals

  • 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 many operators does momondo search for flights from Washington to London Gatwick Airport?

  • How old do you have to be to fly from Washington 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 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.

Best airlines flying from State of Washington to London Gatwick Airport

Compare and see reviews for airlines that fly from State of Washington to London Gatwick Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $503Free CancellationRating
7.1
606 reviews
Search Icelandair flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Guildford
Crawley
Wembley
Dartford
Hayes
Croydon
Brentwood
Harrow
Watford
Cobham
Folkestone
Romford
Stansted
Richmond

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to London for you.

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

momondo does allow users to show only those flights to London from Washington which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to London from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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