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Cheap flights from London Gatwick Airport to Washington from £271

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 17/1. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SEA
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Gatwick to Washington

Keep the following information in mind while searching for Gatwick to Washington flight deals. Data was last updated 14 November 2025.

Round-trip from

£476

One-way from

£271

Popular in

July

Cheapest in

January

Average price

£544
Icelandair
  • Icelandair
  • 24/12-6/1
  • 2 total stops
  • 25h 25m total
  • London to Washington
Search Deals
17/1
  • 17/1
  • 2 total stops
  • 29h 51m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 14 November 2025.

Wed 19/1111:55LGW - SEA
1 stop13h 05mIcelandair
Wed 31/1214:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 13/11£474
Wed 24/1211:55LGW - SEA
1 stop13h 05mIcelandair
Tue 6/114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 13/11£476
Sat 6/1211:55LGW - SEA
1 stop13h 05mIcelandair
Tue 6/114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 12/11£477
Mon 8/1209:40LGW - SEA
1 stop16h 40mMultiple Airlines
Sun 14/1220:05SEA - LGW
1 stop13h 05mMultiple Airlines
Deal found 12/11£494
Fri 5/1211:55LGW - SEA
1 stop13h 05mIcelandair
Sun 7/1214:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 12/11£498
Thu 27/1111:55LGW - SEA
1 stop13h 05mIcelandair
Sun 30/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 13/11£510
Sun 23/1111:55LGW - PDX
1 stop13h 05mIcelandair
Mon 1/1214:45PDX - LGW
1 stop12h 10mIcelandair
Deal found 13/11£563
Fri 5/1214:00LGW - SEA
2 stops29h 53mMultiple Airlines
Sun 14/1206:06SEA - LGW
1 stop15h 54mMultiple Airlines
Deal found 12/11£571
Wed 3/1206:15LGW - SEA
2 stops18h 45mMultiple Airlines
Wed 10/1214:35SEA - LGW
2 stops23h 50mMultiple Airlines
Deal found 13/11£597
Mon 17/1111:55LGW - SEA
2 stops16h 38mIcelandair
Tue 9/1214:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 12/11£597
Wed 26/1111:55LGW - SEA
2 stops16h 43mIcelandair
Sun 30/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 13/11£600
Fri 14/1111:55LGW - PDX
1 stop13h 05mIcelandair
Thu 4/1214:45PDX - LGW
1 stop12h 10mIcelandair
Deal found 13/11£627

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 14 November 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Washington that are best for you.

Fly from

Gatwick

Fly to

Washington

Route

Depart

Return

Price

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 13/1

13:00-10:26

1 stop29h 26m

Seattle/Tacoma Intl

Thu 29/1

23:10-10:00

1 stop26h 50m

£511

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 5/5

13:00-17:50

1 stop12h 50m

Seattle/Tacoma Intl

Sat 9/5

19:00-14:40

1 stop11h 40m

£524

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 9/2

13:00-14:57

1 stop33h 57m

Seattle/Tacoma Intl

Thu 12/2

14:44-06:00

1 stop31h 16m

£542

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Mon 2/3

14:00-20:23

1 stop38h 23m

Portland

Tue 10/3

07:05-06:00

1 stop15h 55m

£560

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Tue 3/3

13:10-20:33

2 stops39h 23m

Portland

Wed 11/3

07:05-06:00

1 stop15h 55m

£577

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Tue 17/3

13:00-19:56

1 stop37h 56m

Portland

Sat 28/3

07:09-10:00

1 stop19h 51m

£591

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Sun 3/5

13:00-18:00

1 stop13h 00m

Portland

Thu 14/5

15:45-14:40

1 stop14h 55m

£593

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Sun 3/5

13:00-18:00

1 stop13h 00m

Portland

Tue 12/5

15:45-14:40

1 stop14h 55m

£593

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Sun 3/5

13:00-18:00

1 stop13h 00m

Portland

Mon 11/5

15:45-11:45

1 stop12h 00m

£593

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Tue 5/5

15:40-18:00

1 stop34h 20m

Portland

Sat 16/5

15:45-11:45

1 stop12h 00m

£595

Flights are sorted by cheapest return flights first.

Deals found on 11/11

Showing 1-10 of 47 results
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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

What is the cheapest month to book a flight from London Gatwick Airport to State of Washington?

Currently, March is the cheapest month in which you can book a flight from London Gatwick Airport to State of Washington (average of £310). Flying from London Gatwick Airport to State of Washington in August is currently the most expensive (average of £571). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LGW to WA?

Find hourly flight availability from Gatwick to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 November 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 30% on flights from London Gatwick Airport to State of Washington by exploring options for tickets in the afternoon.

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 14 November 2025.
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
7.1
Good
578 reviews
Check prices

Overall

7.1

Boarding

7.2

Entertainment

7.0

Food

6.2

Comfort

6.9

Crew

8.0

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.
Icelandair
7.1
Good
578 reviews
Icelandair
7.1
Good
578 reviews
Check prices

Overall

7.1

Boarding

7.2

Entertainment

7.0

Food

6.2

Comfort

6.9

Crew

8.0

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.

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 and American Airlines fly from London Gatwick Airport to State of Washington in about 12h 50m. The time it takes to get you to your destination can typically vary by up to 27h 24m. 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.

  • What is the cheapest month to book a flight from London Gatwick Airport to State of Washington?

    Currently, March is the cheapest month in which you can book a flight from London Gatwick Airport to State of Washington (average of £310). Flying from London Gatwick Airport to State of Washington in August is currently the most expensive (average of £571). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£350Average£513FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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