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Cheap flights from London Gatwick Airport to Washington from £274

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SEA
20 Apr — 27 Apr1
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 21 March 2026.

Wed 10/615:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Sun 21/619:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 19/3£458
Tue 19/509:20
LGW
-
SEA
2 stops19h 20m
Multiple Airlines
Tue 26/519:00
SEA
-
LGW
2 stops17h 10m
Multiple Airlines
Deal found 20/3£460
Wed 29/415:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Thu 7/519:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 16/3£468
Tue 14/415:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Tue 21/415:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 17/3£486
Thu 16/415:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Thu 23/419:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 19/3£487
Thu 1/1015:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Thu 8/1019:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 20/3£487
Thu 30/413:00
LGW
-
SEA
1 stop15h 40m
Icelandair
Thu 7/519:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 16/3£492
Wed 15/415:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Mon 27/415:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 16/3£496
Thu 7/513:00
LGW
-
SEA
1 stop15h 40m
Icelandair
Mon 18/519:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 18/3£498
Wed 13/515:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Thu 21/523:25
SEA
-
LGW
1 stop31h 15m
Icelandair
Deal found 16/3£499
Fri 2/1015:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Sun 18/1015:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 19/3£500
Thu 16/415:40
LGW
-
PDX
1 stop34h 20m
Icelandair
Thu 30/415:30
PDX
-
LGW
1 stop15h 10m
Icelandair
Deal found 19/3£550

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 21 March 2026.

Round-trip from

£458

One-way from

£274

Popular in

July

Cheapest in

February

Average price

£540
Icelandair
  • Icelandair
  • 10/6-21/6
  • 2 total stops
  • 24h 40m total
  • London to Washington
Search Deals
5/6
  • 5/6
  • 1 total stop
  • 33h 30m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 21 March 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
Fastest return journey

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 22/4

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Sun 26/4

19:00-14:40

1 stop11h 40m

£517

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Mon 13/4

06:30-18:00

2 stops19h 30m

Portland

Mon 20/4

15:30-19:20

2 stops19h 50m

£615

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Mon 4/5

15:40-23:55

2 stops16h 15m

Spokane

Mon 11/5

09:55-11:45

2 stops17h 50m

£625

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 7/9

10:20-16:10

1 stop13h 50m

Seattle/Tacoma Intl

Sat 12/9

18:15-18:45

1 stop16h 30m

£628

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 8/9

09:25-20:43

2 stops19h 18m

Seattle/Tacoma Intl

Mon 14/9

07:00-08:25

2 stops17h 25m

£631

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 4/5

09:25-23:29

2 stops22h 04m

Seattle/Tacoma Intl

Sun 10/5

07:00-08:25

2 stops17h 25m

£671

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 7/5

09:25-18:30

2 stops17h 05m

Seattle/Tacoma Intl

Mon 11/5

07:00-08:20

2 stops17h 20m

£702

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 31/3

09:25-22:37

2 stops21h 12m

Seattle/Tacoma Intl

Tue 14/4

10:48-08:25

2 stops37h 37m

£704

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Tue 14/4

15:40-18:00

1 stop34h 20m

Portland

Tue 21/4

13:35-14:40

2 stops17h 05m

£711

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Thu 3/9

10:20-22:25

1 stop20h 05m

Spokane

Sun 13/9

17:47-10:55

1 stop33h 08m

£716

Flights are sorted by cheapest return flights first.

Deals found on 16/3

Showing 1-10 of 52 resultsSorted by cheapest first
1
2
3
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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 21 March 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
625 reviews
Check prices

Food

6.2

Overall

7.0

Entertainment

7.0

Boarding

7.2

Comfort

6.9

Crew

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

ZRH - KEF

Almost 7 hr flight and no ear buds provided and no food. I would choose a different airline next time for that reason.
Icelandair
7.0
Good
625 reviews
Icelandair
7.0
Good
625 reviews
Check prices

Food

6.2

Overall

7.0

Entertainment

7.0

Boarding

7.2

Comfort

6.9

Crew

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

ZRH - KEF

Almost 7 hr flight and no ear buds provided and no food. I would choose a different airline next time for that reason.

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, Condor, and SWISS fly from London Gatwick Airport to State of Washington in about 13h. The time it takes to get you to your destination can typically vary by up to 6h 18m. 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 21 March 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£378Average£485FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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