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Cheap flights from London Gatwick Airport to Washington from £343

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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SEA
12 Oct — 19 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 12 September 2025.

Round-trip from

£446

One-way from

£343

Popular in

August

Cheapest in

January

Average price

£512
Icelandair
  • Icelandair
  • 16/10-20/10
  • 2 total stops
  • 24h 35m total
  • London to Washington
Search Deals
12/12
  • 12/12
  • 3 total stops
  • 58h 14m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 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 12 September 2025.

Thu 16/1015:40LGW - SEA
1 stop13h 00mIcelandair
Mon 20/1019:00SEA - LGW
1 stop11h 35mIcelandair
Deal found 11/9£446
Tue 7/1015:40LGW - SEA
1 stop13h 00mIcelandair
Mon 10/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 11/9£448
Sat 18/1015:40LGW - SEA
1 stop13h 00mIcelandair
Fri 24/1015:45SEA - LGW
1 stop14h 55mIcelandair
Deal found 11/9£450
Sat 20/909:50LGW - SEA
2 stops59h 02mMultiple Airlines
Sat 4/1021:39SEA - LGW
1 stop29h 16mMultiple Airlines
Deal found 10/9£450
Sat 4/1015:40LGW - SEA
1 stop13h 00mIcelandair
Tue 7/715:45SEA - LGW
1 stop14h 55mIcelandair
Deal found 11/9£456
Mon 22/915:40LGW - SEA
1 stop13h 00mIcelandair
Mon 6/1019:00SEA - LGW
1 stop11h 35mIcelandair
Deal found 11/9£457
Sat 1/1111:55LGW - SEA
1 stop13h 05mIcelandair
Tue 11/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 11/9£461
Sun 26/1014:40LGW - SEA
1 stop34h 20mIcelandair
Sun 2/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 11/9£461
Wed 19/1118:40LGW - SEA
2 stops36h 35mSWISS
Wed 3/1213:05SEA - LGW
2 stops20h 45mSWISS
Deal found 11/9£463
Sat 27/915:40LGW - SEA
1 stop13h 00mIcelandair
Sat 1/1115:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 10/9£464
Fri 17/1010:55LGW - GEG
1 stop19h 41mMultiple Airlines
Wed 22/1007:00GEG - LGW
1 stop19h 55mMultiple Airlines
Deal found 10/9£489
Mon 6/1015:40LGW - PDX
1 stop34h 15mIcelandair
Mon 20/1015:20PDX - LGW
1 stop15h 15mIcelandair
Deal found 12/9£527

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 12 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

Tue 7/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Tue 11/11

14:35-10:55

1 stop12h 20m

£448

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 18/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Fri 24/10

15:45-14:40

1 stop14h 55m

£450

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 4/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Tue 7/7

15:45-14:40

1 stop14h 55m

£456

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Fri 10/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Mon 3/11

14:35-10:55

1 stop12h 20m

£465

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 9/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Sun 2/11

14:35-10:55

1 stop12h 20m

£473

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 7/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Fri 7/11

14:35-10:55

1 stop12h 20m

£473

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 8/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Fri 7/11

14:35-10:55

1 stop12h 20m

£473

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 8/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Sat 11/10

19:00-14:35

1 stop11h 35m

£473

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 4/10

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Fri 7/11

14:35-10:55

1 stop12h 20m

£473

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 1/11

11:55-18:00

1 stop13h 05m

Seattle/Tacoma Intl

Thu 13/11

14:35-10:55

1 stop12h 20m

£478

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 50 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 12 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.

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 12 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

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.9

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

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.9

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
546 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.9

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 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 . The distance between London Gatwick Airport and State of Washington is about 4807 mi.

  • 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 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£323Average£520FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£450Average£486FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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