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Cheap flights from London Gatwick Airport to Washington from £308

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SEA
31 May — 7 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Gatwick to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Gatwick to Washington
Explore the most affordable flight options available from Gatwick to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2026.

Sun 28/613:00
LGW
-
SEA
1 stop30h 45m
Icelandair
Thu 16/719:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 26/4£520
Thu 25/613:00
LGW
-
SEA
1 stop12h 55m
Icelandair
Thu 9/719:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 28/4£521
Fri 26/615:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Sun 5/719:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 26/4£522
Sun 28/613:00
LGW
-
SEA
1 stop30h 45m
Icelandair
Wed 15/719:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 28/4£522
Sun 31/515:40
LGW
-
SEA
1 stop28h 05m
Icelandair
Tue 16/623:25
SEA
-
LGW
1 stop28h 20m
Icelandair
Deal found 28/4£525
Sat 9/515:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Tue 23/623:25
SEA
-
LGW
1 stop28h 20m
Icelandair
Deal found 27/4£526
Mon 4/515:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Fri 8/519:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 26/4£528
Sun 20/915:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Wed 30/919:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 27/4£528
Wed 6/515:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Wed 3/619:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 30/4£529
Wed 6/515:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Wed 10/623:25
SEA
-
LGW
1 stop31h 15m
Icelandair
Deal found 30/4£530
Thu 30/415:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Mon 4/515:40
SEA
-
LGW
1 stop12h 05m
Icelandair
Deal found 26/4£531
Mon 1/615:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Mon 15/623:25
SEA
-
LGW
1 stop31h 15m
Icelandair
Deal found 29/4£533

Find flight deals from Gatwick to Washington

Keep the following information in mind while searching for Gatwick to Washington flight deals. Data was last updated 1 May 2026.

Round-trip from

£520

One-way from

£308

Popular in

July

Cheapest in

February

Average price

£538
Icelandair
  • Icelandair
  • 28/6-16/7
  • 2 total stops
  • 42h 25m total
  • London to Washington
Search Deals
15/5
  • 15/5
  • 3 total stops
  • 47h 50m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gatwick to 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, Cheapflights users made 858,174 searches. Data last updated 1 May 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

Cheapest return flight

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 28/6

13:00-11:45

1 stop30h 45m

Seattle/Tacoma Intl

Fri 10/7

15:40-14:40

1 stop15h 00m

£522
Fastest return journey

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 24/8

10:25-17:34

1 stop15h 09m

Seattle/Tacoma Intl

Tue 1/9

13:30-09:25

1 stop11h 55m

£627

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 4/6

10:25-17:30

1 stop15h 05m

Seattle/Tacoma Intl

Sat 13/6

18:50-16:00

1 stop13h 10m

£633

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 7/7

17:00-11:15

1 stop26h 15m

Seattle/Tacoma Intl

Tue 21/7

05:20-09:25

2 stops20h 05m

£636

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 1/7

17:00-11:15

1 stop26h 15m

Seattle/Tacoma Intl

Wed 15/7

13:30-16:00

1 stop18h 30m

£643

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 8/9

09:25-22:42

2 stops21h 17m

Seattle/Tacoma Intl

Wed 16/9

10:47-08:25

2 stops37h 38m

£655

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 9/9

09:20-18:32

2 stops17h 12m

Seattle/Tacoma Intl

Tue 22/9

07:00-08:25

2 stops17h 25m

£691

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Tue 12/5

15:40-18:00

1 stop34h 20m

Portland

Fri 22/5

19:05-14:40

1 stop11h 35m

£723

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 31/5

09:05-18:30

2 stops17h 25m

Seattle/Tacoma Intl

Tue 16/6

10:45-17:50

2 stops23h 05m

£723

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Fri 26/6

12:20-22:34

1 stop18h 14m

Portland

Mon 29/6

23:29-09:35

1 stop26h 06m

£737

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 58 resultsSorted by cheapest first
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6

Best time to book a flight from Gatwick to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Gatwick with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Gatwick Airport to Washington

How much does it cost for a return flight from London Gatwick Airport to State of Washington?

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated 1 May 2026.
Read through reviews of airlines operating flights from London Gatwick Airport to Washington, such as Icelandair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
646 reviews
Check prices

Crew

8.0

Overall

7.0

Food

6.2

Boarding

7.2

Entertainment

6.9

Comfort

6.9

Reviews

1 / 20
2.0
Mediocre

Bruce,Mar 2026

BCN - KEF

The airline is charging everything. Drink, meal and ear plug for watching entertainment. This was 4 hours 40 minutes flight.
Icelandair
7.0
Good
646 reviews
Icelandair
7.0
Good
646 reviews
Check prices

Crew

8.0

Overall

7.0

Food

6.2

Boarding

7.2

Entertainment

6.9

Comfort

6.9

Reviews

1 / 20
2.0
Mediocre

Bruce,Mar 2026

BCN - KEF

The airline is charging everything. Drink, meal and ear plug for watching entertainment. This was 4 hours 40 minutes flight.

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Gatwick Airport to State of Washington?

    Airlines like Icelandair, Delta, and JetBlue fly from London Gatwick Airport to State of Washington in about 15h 05m. The time it takes to get you to your destination can typically vary by up to 15h 40m. The distance between London Gatwick Airport and State of Washington is about 4807 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from London Gatwick Airport to State of Washington?

    The most popular route from London Gatwick Airport to State of Washington is London Gatwick - Seattle/Tacoma Intl. You may also consider London Gatwick - Portland or London Gatwick - Spokane.

  • Can I find deals for flights from Gatwick to Washington that include hotel bookings?

    Yes. In addition to deals on Gatwick to Washington flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Washington.

  • Can I find deals for business class flights from Gatwick to Washington?

    Yes. Cheapflights offers flight deals from Gatwick to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Gatwick to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Gatwick to Washington

Discover the top airline that operate flights from Gatwick to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 1 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£375Average£494FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Gatwick to Washington flexibly with Cheapflights today.

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