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Cheap flights from London Gatwick Airport to Washington from £376

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SEA
19 Jul — 26 Jul1
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 19 June 2026.

Mon 31/815:40
LGW
-
SEA
1 stop28h 05m
Icelandair
Tue 8/919:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 17/6£481
Sat 4/710:25
LGW
-
SEA
1 stop15h 02m
Delta
Mon 13/718:35
SEA
-
LGW
1 stop13h 25m
Delta
Deal found 17/6£484
Sat 27/610:25
LGW
-
SEA
1 stop15h 05m
Delta
Fri 3/718:35
SEA
-
LGW
1 stop13h 25m
Delta
Deal found 17/6£484
Sun 4/1015:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Fri 9/1015:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 19/6£489
Sun 30/813:00
LGW
-
SEA
1 stop12h 55m
Icelandair
Thu 17/919:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 17/6£490
Tue 1/917:00
LGW
-
SEA
2 stops25h 13m
Virgin Atlantic
Tue 8/913:30
SEA
-
LGW
1 stop11h 55m
Virgin Atlantic
Deal found 17/6£491
Wed 1/717:00
LGW
-
SEA
2 stops33h 40m
Virgin Atlantic
Mon 13/713:30
SEA
-
LGW
1 stop18h 30m
Virgin Atlantic
Deal found 17/6£493
Mon 14/917:00
LGW
-
SEA
1 stop26h 15m
Virgin Atlantic
Sun 20/913:30
SEA
-
LGW
1 stop18h 30m
Virgin Atlantic
Deal found 17/6£496
Tue 1/906:00
LGW
-
SEA
3 stops23h 07m
Multiple Airlines
Sat 12/919:00
SEA
-
LGW
1 stop11h 40m
Multiple Airlines
Deal found 19/6£497
Tue 7/717:00
LGW
-
SEA
1 stop26h 15m
Virgin Atlantic
Mon 13/713:30
SEA
-
LGW
1 stop12h 10m
Virgin Atlantic
Deal found 19/6£499
Sat 4/717:00
LGW
-
SEA
1 stop26h 15m
Virgin Atlantic
Mon 13/713:30
SEA
-
LGW
1 stop12h 10m
Virgin Atlantic
Deal found 18/6£499
Tue 23/610:35
LGW
-
SEA
1 stop14h 55m
Delta
Fri 3/718:35
SEA
-
LGW
1 stop13h 25m
Delta
Deal found 17/6£500

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 19 June 2026.

Round-trip from

£481

One-way from

£376

Popular in

July

Cheapest in

February

Average price

£635
Icelandair
  • Icelandair
  • 31/8-8/9
  • 2 total stops
  • 39h 45m total
  • London to Washington
Search Deals
27/9
  • 27/9
  • 3 total stops
  • 36h 55m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 19 June 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

Thu 24/9

10:25-23:10

2 stops20h 45m

Seattle/Tacoma Intl

Thu 8/10

13:30-09:25

1 stop11h 55m

£526

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 7/11

16:45-15:21

1 stop30h 36m

Seattle/Tacoma Intl

Mon 7/12

14:05-15:45

1 stop17h 40m

£541

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 7/7

09:25-18:32

2 stops17h 07m

Seattle/Tacoma Intl

Mon 13/7

15:33-17:50

2 stops18h 17m

£638

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 14/9

09:25-20:43

2 stops19h 18m

Seattle/Tacoma Intl

Sun 20/9

07:00-08:25

2 stops17h 25m

£643

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Fri 4/9

10:20-16:00

1 stop13h 40m

Seattle/Tacoma Intl

Mon 7/9

11:59-18:50

2 stops22h 51m

£647

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 26/9

15:40-20:35

2 stops36h 55m

Seattle/Tacoma Intl

Thu 22/10

19:00-14:40

1 stop11h 40m

£696
Fastest return journey

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 25/7

10:25-17:27

1 stop15h 02m

Seattle/Tacoma Intl

Thu 30/7

13:30-09:25

1 stop11h 55m

£708

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Tue 1/9

15:40-17:55

1 stop34h 15m

Portland

Sat 5/9

17:41-14:40

2 stops36h 59m

£721

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Fri 3/7

09:25-18:32

2 stops17h 07m

Seattle/Tacoma Intl

Thu 6/8

07:00-08:25

2 stops17h 25m

£749

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 20/7

12:20-22:54

1 stop18h 34m

Seattle/Tacoma Intl

Thu 23/7

11:45-09:35

1 stop13h 50m

£751

Flights are sorted by cheapest return flights first.

Deals found on 17/6

Showing 1-10 of 53 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 19 June 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
679 reviews
Check prices

Boarding

7.2

Crew

8.0

Comfort

6.9

Food

6.2

Entertainment

6.9

Overall

7.0

Reviews

1 / 20
6.0
Good

William,Jun 2026

SEA - KEF

First time Iceland Air. Ridiculously small amount of leg room, flight was hotter than hades and people kept requesting for cooler air that never came. You pay for everything, no food of any kind unless you pay which I've never seen on a flight of this length. Just seemed like they are cheap as possible about everything. Won't fly with them again if I can avoid it.
Icelandair
7.0
Good
679 reviews
Icelandair
7.0
Good
679 reviews
Check prices

Boarding

7.2

Crew

8.0

Comfort

6.9

Food

6.2

Entertainment

6.9

Overall

7.0

Reviews

1 / 20
6.0
Good

William,Jun 2026

SEA - KEF

First time Iceland Air. Ridiculously small amount of leg room, flight was hotter than hades and people kept requesting for cooler air that never came. You pay for everything, no food of any kind unless you pay which I've never seen on a flight of this length. Just seemed like they are cheap as possible about everything. Won't fly with them again if I can avoid it.

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 Virgin Atlantic, SWISS, and Icelandair fly from London Gatwick Airport to State of Washington in about 17h 07m. The time it takes to get you to your destination can typically vary by up to 17h 08m. 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 19 June 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£399Average£532FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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