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Cheap flights from London Gatwick Airport to Washington from £319

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Gatwick Airport to Washington departing on 15/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m
1 stop
Icelandair Logo
19:00 - 14:40
SEA
-
LGW
11h 40m
1 stop
£366Icelandair
Sat, 25 Apr - Sat, 2 May
Icelandair Logo
11:55 - 18:00
LGW
-
SEA
13h 05m
1 stop
Icelandair Logo
15:35 - 10:55
SEA
-
LGW
12h 20m
1 stop
£381Icelandair
Mon, 9 Mar - Tue, 24 Mar
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m
1 stop
Icelandair Logo
15:40 - 14:40
SEA
-
LGW
15h 00m
1 stop
£385Icelandair
Wed, 8 Apr - Tue, 21 Apr
Icelandair Logo
11:55 - 17:00
LGW
-
SEA
13h 05m
1 stop
Icelandair Logo
14:35 - 10:55
SEA
-
LGW
12h 20m
1 stop
£387Icelandair
Tue, 24 Feb - Wed, 4 Mar
Icelandair Logo
15:40 - 20:40
LGW
-
SEA
13h 00m
1 stop
Icelandair Logo
19:00 - 14:40
SEA
-
LGW
11h 40m
1 stop
£389Icelandair
Wed, 13 May - Sun, 24 May
Icelandair Logo
15:40 - 17:55
LGW
-
SEA
34h 15m
1 stop
Icelandair Logo
15:40 - 14:40
SEA
-
LGW
15h 00m
1 stop
£390Icelandair
Sun, 10 May - Sun, 31 May
Icelandair Logo
11:55 - 17:00
LGW
-
SEA
13h 05m
1 stop
Icelandair Logo
14:35 - 10:55
SEA
-
LGW
12h 20m
1 stop
£392Icelandair
Tue, 24 Feb - Tue, 3 Mar
Icelandair Logo
11:55 - 18:00
LGW
-
SEA
13h 05m
1 stop
Icelandair Logo
15:35 - 10:55
SEA
-
LGW
12h 20m
1 stop
£394Icelandair
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
07:00 - 09:15
LGW
-
PDX
33h 15m
3 stops
Multiple Airlines Logo
15:30 - 20:05
PDX
-
LGW
20h 35m
3 stops
£529Multiple Airlines
Mon, 16 Mar - Mon, 30 Mar
Multiple Airlines Logo
07:00 - 09:15
LGW
-
PDX
33h 15m
3 stops
Multiple Airlines Logo
15:30 - 20:05
PDX
-
LGW
20h 35m
3 stops
£530Multiple Airlines
Mon, 16 Mar - Mon, 30 Mar

Icelandair flights from London Gatwick Airport to State of Washington

Our best Icelandair deals on London Gatwick Airport to State of Washington flight tickets
Icelandair
25 Apr
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
2 May
SEA19:00Seattle/Tacoma Intl
11h 40m
1 stop
LGW14:40London Gatwick
£366
Icelandair
9 Mar
LGW11:55London Gatwick
13h 05m
1 stop
SEA18:00Seattle/Tacoma Intl
24 Mar
SEA15:35Seattle/Tacoma Intl
12h 20m
1 stop
LGW10:55London Gatwick
£381
Icelandair
8 Apr
LGW15:40London Gatwick
13h 00m
1 stop
SEA20:40Seattle/Tacoma Intl
21 Apr
SEA15:40Seattle/Tacoma Intl
15h 00m
1 stop
LGW14:40London Gatwick
£385

Delta flights from London Gatwick Airport to State of Washington

Our best Delta deals on London Gatwick Airport to State of Washington flight tickets
Delta
13 Apr
LGW10:25London Gatwick
15h 13m
1 stop
SEA17:38Seattle/Tacoma Intl
5 May
SEA18:40Seattle/Tacoma Intl
13h 20m
1 stop
LGW16:00London Gatwick
£408
Delta
13 Apr
LGW10:25London Gatwick
15h 13m
1 stop
SEA17:38Seattle/Tacoma Intl
6 May
SEA18:40Seattle/Tacoma Intl
13h 20m
1 stop
LGW16:00London Gatwick
£419

momondo Fare Finder

 
Customise your flight search to find flights from London Gatwick Airport to State of Washington 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 5 February 2026.
Use the filters below to find and compare flights from London Gatwick Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 25/4

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Sat 2/5

19:00-14:40

1 stop11h 40m

£366

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 9/3

11:55-18:00

1 stop13h 05m

Seattle/Tacoma Intl

Tue 24/3

15:35-10:55

1 stop12h 20m

£381

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 8/4

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Tue 21/4

15:40-14:40

1 stop15h 00m

£385

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 24/2

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 4/3

14:35-10:55

1 stop12h 20m

£387

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 13/5

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Sun 24/5

19:00-14:40

1 stop11h 40m

£389

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 10/5

15:40-17:55

1 stop34h 15m

Seattle/Tacoma Intl

Sun 31/5

15:40-14:40

1 stop15h 00m

£390

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 24/2

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Tue 3/3

14:35-10:55

1 stop12h 20m

£392

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 9/3

11:55-18:00

1 stop13h 05m

Seattle/Tacoma Intl

Mon 16/3

15:35-10:55

1 stop12h 20m

£394

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Mon 16/3

07:00-09:15

3 stops33h 15m

Portland

Mon 30/3

15:30-20:05

3 stops20h 35m

£529

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Mon 16/3

07:00-09:15

3 stops33h 15m

Portland

Mon 30/3

15:30-20:05

3 stops20h 35m

£530

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington from

How to get the cheapest flight ticket from London Gatwick Airport to State of Washington

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 State of Washington?

If you aren’t able to travel to State of Washington during the month of March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £393.

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

You could potentially save up to 64% on your flight if you consider stops on a London Gatwick Airport to State of Washington flight.

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

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

Fastest flight time

12h 55m

Direct flights

None
The fastest flight from London Gatwick Airport to State of Washington takes 12h 55m
There are no direct flights from London Gatwick Airport to State of Washington. There are no popular flight routes from London Gatwick Airport to State of Washington.
Search flight deals

  • When did momondo last update prices for flights from London Gatwick Airport to Washington?

    Prices for flights from London Gatwick Airport to Washington refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Gatwick Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The travel and health documents you'll need for your trip to Washington 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 Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from London Gatwick Airport to State of Washington

Compare and see reviews for airlines that fly from London Gatwick Airport to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £348Free CancellationRating
7.1
606 reviews
Search Icelandair flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington from London.

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

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

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

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 London to Washington.

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

Yes. momondo can track prices for London to Washington flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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