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Cheap flights from London Gatwick Airport to Washington from £374

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SEA
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 18 September 2025.

Round-trip from

£442

One-way from

£374

Popular in

July

Cheapest in

January

Average price

£496
Icelandair
  • Icelandair
  • 28/10-2/11
  • 2 total stops
  • 25h 25m total
  • London to Washington
Search Deals
2/10
  • 2/10
  • 3 total stops
  • 55h 44m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£61 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 September 2025
Search Deals

Find flight deals from Gatwick to Washington

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 18 September 2025.

Tue 28/1011:55LGW - SEA
1 stop13h 05mIcelandair
Sun 2/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 15/9£442
Mon 3/1117:20LGW - SEA
2 stops49h 15mMultiple Airlines
Sun 16/1121:34SEA - LGW
1 stop24h 26mMultiple Airlines
Deal found 15/9£447
Thu 25/915:40LGW - SEA
1 stop13h 00mIcelandair
Sat 29/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 16/9£448
Mon 3/1118:40LGW - SEA
2 stops36h 05mSWISS
Sun 16/1114:40SEA - LGW
2 stops19h 10mSWISS
Deal found 15/9£449
Wed 24/915:35LGW - SEA
1 stop13h 05mIcelandair
Wed 15/1019:00SEA - LGW
1 stop11h 40mIcelandair
Deal found 16/9£451
Tue 28/1011:55LGW - SEA
1 stop13h 05mIcelandair
Wed 12/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 16/9£452
Thu 25/915:40LGW - SEA
1 stop13h 00mIcelandair
Thu 27/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 17/9£453
Thu 27/1111:55LGW - SEA
1 stop13h 05mIcelandair
Tue 2/1214:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 16/9£454
Sat 1/1111:55LGW - SEA
1 stop13h 05mIcelandair
Mon 16/315:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 15/9£454
Wed 19/1111:55LGW - SEA
1 stop13h 05mIcelandair
Sun 30/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 16/9£455
Sat 27/909:50LGW - SEA
1 stop22h 09mMultiple Airlines
Thu 16/1013:02SEA - LGW
2 stops37h 53mMultiple Airlines
Deal found 16/9£456
Fri 26/915:40LGW - SEA
1 stop13h 00mIcelandair
Fri 5/1214:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 16/9£456

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 18 September 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

Sun 2/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Tue 31/3

15:45-14:40

1 stop14h 55m

£454

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 3/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 1/4

19:00-14:40

1 stop11h 40m

£454

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 2/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Thu 2/4

19:00-14:40

1 stop11h 40m

£454

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 1/11

11:55-18:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 11/3

15:35-10:55

1 stop12h 20m

£454

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 2/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Mon 16/3

15:35-10:55

1 stop12h 20m

£454

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 4/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Mon 16/3

15:35-10:55

1 stop12h 20m

£454

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 3/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 11/3

15:35-10:55

1 stop12h 20m

£454

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 6/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Fri 3/4

19:00-14:40

1 stop11h 40m

£457

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 1/11

14:00-13:13

2 stops30h 13m

Seattle/Tacoma Intl

Sat 8/11

21:34-06:00

1 stop24h 26m

£465

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 24/2

13:00-14:49

1 stop33h 49m

Seattle/Tacoma Intl

Tue 3/3

23:20-06:00

1 stop22h 40m

£477

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 49 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, January is the cheapest month in which you can book a flight from London Gatwick Airport to State of Washington (average of £622). Flying from London Gatwick Airport to State of Washington in July is currently the most expensive (average of £946). 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 18 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Gatwick Airport to State of Washington as you normally would.

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 18 September 2025.
Read through reviews of airlines operating flights from London Gatwick Airport to Washington, such as Virgin Atlantic and Icelandair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.4
Good
664 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Icelandair
7.0
Good
545 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.5

Food

6.9

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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 13h 05m. The time it takes to get you to your destination can typically vary by up to 7h 15m. 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, January is the cheapest month in which you can book a flight from London Gatwick Airport to State of Washington (average of £622). Flying from London Gatwick Airport to State of Washington in July is currently the most expensive (average of £946). 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 2 airlines flying from Gatwick to Washington

Discover the top 2 airlines 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 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£320Average£516FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£446Average£482FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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