What is the cheapest airline that flies from London Gatwick to Washington?

SWISS is the most popular carrier operating from London Gatwick to Washington

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

The number of operators available for flights from London Gatwick Airport to Washington is 1 as of August 2026.

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.

£382 Cheap Flights from London Gatwick Airport to State of Washington in 2026

Find the cheapest flights from London Gatwick Airport to Washington

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

15:40 - 20:40LGW London Gatwick-SEA Seattle/Tacoma Intl

13h 00m1 stop Reykjavik Keflavik Intl

19:00 - 14:40SEA Seattle/Tacoma Intl-LGW London Gatwick

11h 40m1 stop Reykjavik Keflavik Intl

£472Icelandair

Tue, 22 Sep - Wed, 30 Sep

15:40 - 20:40LGW London Gatwick-SEA Seattle/Tacoma Intl

13h 00m1 stop Reykjavik Keflavik Intl

19:00 - 14:40SEA Seattle/Tacoma Intl-LGW London Gatwick

11h 40m1 stop Reykjavik Keflavik Intl

£473Icelandair

Tue, 29 Sep - Wed, 7 Oct

15:40 - 20:40LGW London Gatwick-SEA Seattle/Tacoma Intl

13h 00m1 stop Reykjavik Keflavik Intl

19:00 - 14:40SEA Seattle/Tacoma Intl-LGW London Gatwick

11h 40m1 stop Reykjavik Keflavik Intl

£474Icelandair

Tue, 1 Sep - Mon, 7 Sep

15:40 - 20:40LGW London Gatwick-SEA Seattle/Tacoma Intl

13h 00m1 stop Reykjavik Keflavik Intl

19:00 - 14:40SEA Seattle/Tacoma Intl-LGW London Gatwick

11h 40m1 stop Reykjavik Keflavik Intl

£475Icelandair

Wed, 2 Sep - Wed, 23 Sep

15:40 - 11:45LGW London Gatwick-SEA Seattle/Tacoma Intl

28h 05m1 stop Reykjavik Keflavik Intl

19:00 - 14:40SEA Seattle/Tacoma Intl-LGW London Gatwick

11h 40m1 stop Reykjavik Keflavik Intl

£477Icelandair

Tue, 8 Sep - Tue, 15 Sep

13:00 - 20:40LGW London Gatwick-SEA Seattle/Tacoma Intl

15h 40m1 stop Reykjavik Keflavik Intl

19:00 - 14:40SEA Seattle/Tacoma Intl-LGW London Gatwick

11h 40m1 stop Reykjavik Keflavik Intl

£478Icelandair

Tue, 1 Sep - Tue, 8 Sep

15:40 - 20:40LGW London Gatwick-SEA Seattle/Tacoma Intl

13h 00m1 stop Reykjavik Keflavik Intl

19:00 - 14:40SEA Seattle/Tacoma Intl-LGW London Gatwick

11h 40m1 stop Reykjavik Keflavik Intl

£478Icelandair

Tue, 29 Sep - Tue, 6 Oct

20:45 - 17:55LGW London Gatwick-SEA Seattle/Tacoma Intl

29h 10m3 stops Kastrup Copenhagen Oslo Gardermoen Reykjavik Keflavik Intl

15:40 - 20:10SEA Seattle/Tacoma Intl-LGW London Gatwick

20h 30m2 stops Reykjavik Keflavik Intl Oslo Gardermoen

£498Multiple Airlines

Mon, 5 Oct - Wed, 21 Oct

17:00 - 11:45LGW London Gatwick-SEA Seattle/Tacoma Intl

26h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

19:00 - 18:25SEA Seattle/Tacoma Intl-LGW London Gatwick

15h 25m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£499Multiple Airlines

Tue, 8 Sep - Tue, 22 Sep

10:25 - 15:55LGW London Gatwick-SEA Seattle/Tacoma Intl

13h 30m1 stop Frankfurt am Main

17:50 - 14:50SEA Seattle/Tacoma Intl-LGW London Gatwick

13h 00m1 stop Frankfurt am Main

£504Condor

Mon, 8 Feb - Mon, 22 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

13:00 - 11:45LGW London Gatwick-SEA Seattle/Tacoma Intl

30h 45m1 stop Reykjavik Keflavik Intl

19:00 - 14:40SEA Seattle/Tacoma Intl-LGW London Gatwick

11h 40m1 stop Reykjavik Keflavik Intl

£551Icelandair

Thu, 20 Aug - Mon, 14 Sep

17:25 - 16:00LGW London Gatwick-SEA Seattle/Tacoma Intl

30h 35m2 stops Barcelona-El Prat Frankfurt am Main

17:40 - 23:25SEA Seattle/Tacoma Intl-LGW London Gatwick

21h 45m2 stops Frankfurt am Main Barcelona-El Prat

£670Multiple Airlines

Wed, 19 Aug - Sun, 23 Aug

17:25 - 16:00LGW London Gatwick-SEA Seattle/Tacoma Intl

30h 35m2 stops Barcelona-El Prat Frankfurt am Main

17:40 - 09:00SEA Seattle/Tacoma Intl-LGW London Gatwick

31h 20m3 stops Frankfurt am Main Barcelona-El Prat Madrid Barajas

£706Multiple Airlines

Wed, 19 Aug - Sun, 23 Aug

09:40 - 09:40LGW London Gatwick-SEA Seattle/Tacoma Intl

32h 00m2 stops Toronto Pearson Intl Calgary

19:00 - 23:00SEA Seattle/Tacoma Intl-LGW London Gatwick

20h 00m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£731Multiple Airlines

Thu, 20 Aug - Thu, 27 Aug

09:40 - 09:40LGW London Gatwick-SEA Seattle/Tacoma Intl

32h 00m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Calgary

19:00 - 23:00SEA Seattle/Tacoma Intl-LGW London Gatwick

20h 00m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£742Multiple Airlines

Thu, 20 Aug - Thu, 27 Aug

20:40 - 20:52LGW London Gatwick-SEA Seattle/Tacoma Intl

32h 12m2 stops Madrid Barajas Chicago O'Hare Intl

06:15 - 20:00SEA Seattle/Tacoma Intl-LGW London Gatwick

29h 45m2 stops Chicago O'Hare Intl Madrid Barajas

£745Iberia

Thu, 20 Aug - Mon, 14 Sep

10:20 - 15:40LGW London Gatwick-SEA Seattle/Tacoma Intl

13h 20m1 stop Frankfurt am Main

18:05 - 18:50SEA Seattle/Tacoma Intl-LGW London Gatwick

16h 45m1 stop Frankfurt am Main

£753Condor

Wed, 19 Aug - Thu, 20 Aug

15:40 - 11:45LGW London Gatwick-SEA Seattle/Tacoma Intl

28h 05m1 stop Reykjavik Keflavik Intl

15:40 - 14:40SEA Seattle/Tacoma Intl-LGW London Gatwick

15h 00m1 stop Reykjavik Keflavik Intl

£761Icelandair

Wed, 19 Aug - Sun, 23 Aug

18:25 - 21:00LGW London Gatwick-SEA Seattle/Tacoma Intl

34h 35m2 stops Dublin Calgary

19:00 - 14:40SEA Seattle/Tacoma Intl-LGW London Gatwick

11h 40m1 stop Reykjavik Keflavik Intl

£761Multiple Airlines

Thu, 20 Aug - Mon, 14 Sep

09:40 - 09:40LGW London Gatwick-SEA Seattle/Tacoma Intl

32h 00m2 stops Toronto Pearson Intl Calgary

19:00 - 23:00SEA Seattle/Tacoma Intl-LGW London Gatwick

20h 00m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£764Multiple Airlines

Thu, 20 Aug - Thu, 27 Aug

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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

22 Sept

LGW15:40London Gatwick

13h 00m

1 stop

SEA20:40Seattle/Tacoma Intl

30 Sept

SEA19:00Seattle/Tacoma Intl

11h 40m

1 stop

LGW14:40London Gatwick

£472

Icelandair

29 Sept

LGW15:40London Gatwick

13h 00m

1 stop

SEA20:40Seattle/Tacoma Intl

7 Oct

SEA19:00Seattle/Tacoma Intl

11h 40m

1 stop

LGW14:40London Gatwick

£473

Icelandair

1 Sept

LGW15:40London Gatwick

13h 00m

1 stop

SEA20:40Seattle/Tacoma Intl

7 Sept

SEA19:00Seattle/Tacoma Intl

11h 40m

1 stop

LGW14:40London Gatwick

£474

SWISS flights from London Gatwick Airport to State of Washington

Our best SWISS deals on London Gatwick Airport to State of Washington flight tickets

SWISS

25 Aug

LGW09:25London Gatwick

19h 18m

2 stops

SEA20:43Seattle/Tacoma Intl

13 Sept

SEA07:00Seattle/Tacoma Intl

17h 25m

2 stops

LGW08:25London Gatwick

£599

SWISS

29 Aug

LGW09:25London Gatwick

19h 18m

2 stops

SEA20:43Seattle/Tacoma Intl

17 Sept

SEA07:00Seattle/Tacoma Intl

17h 25m

2 stops

LGW08:25London Gatwick

£633

SWISS

2 Nov

LGW18:40London Gatwick

36h 32m

2 stops

PDX23:12Portland

17 Nov

PDX08:40Portland

25h 10m

2 stops

LGW17:50London Gatwick

£689

momondo Fare Finder

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

Cheapest return flight

Fastest return journey

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 22/9

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Wed 30/9

19:00-14:40

1 stop11h 40m

£472

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 29/9

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Wed 7/10

19:00-14:40

1 stop11h 40m

£473

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 1/9

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Mon 7/9

19:00-14:40

1 stop11h 40m

£474

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Wed 2/9

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Wed 23/9

19:00-14:40

1 stop11h 40m

£475

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 8/9

15:40-11:45

1 stop28h 05m

Seattle/Tacoma Intl

Tue 15/9

19:00-14:40

1 stop11h 40m

£477

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 1/9

13:00-20:40

1 stop15h 40m

Seattle/Tacoma Intl

Tue 8/9

19:00-14:40

1 stop11h 40m

£478

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 29/9

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Tue 6/10

19:00-14:40

1 stop11h 40m

£478

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Mon 5/10

20:45-17:55

3 stops29h 10m

Seattle/Tacoma Intl

Wed 21/10

15:40-20:10

2 stops20h 30m

£498

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 8/9

17:00-11:45

2 stops26h 45m

Seattle/Tacoma Intl

Tue 22/9

19:00-18:25

2 stops15h 25m

£499

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Mon 8/2

10:25-15:55

1 stop13h 30m

Seattle/Tacoma Intl

Mon 22/2

17:50-14:50

1 stop13h 00m

£504

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £391.

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

You could potentially save up to 45% 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	13h 00m
Direct flights	None

The fastest flight from London Gatwick Airport to State of Washington takes 13h 00m

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

Frequently asked questions about flying from London Gatwick Airport to Washington

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?
The number of operators available for flights from London Gatwick Airport to Washington is 1 as of August 2026.
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
Icelandair	PriceFrom £391	Free Cancellation	Rating 6.9 730 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.