Find flights
When to book
Airlines
FAQs

Cheap flights from London Gatwick Airport to Washington from £245

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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SEA
21 Feb — 28 Feb1
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 22 January 2026.

Sat 2/513:00
LGW
-
SEA
1 stop15h 40m
Icelandair
Sat 23/515:40
SEA
-
LGW
1 stop12h 05m
Icelandair
Deal found 22/1£373
Tue 19/515:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Tue 2/615:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 21/1£374
Thu 5/211:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Mon 9/214:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Deal found 21/1£374
Mon 2/211:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Sun 8/214:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Deal found 21/1£375
Fri 12/615:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Fri 19/619:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 21/1£376
Sat 31/111:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Mon 9/214:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Deal found 21/1£378
Mon 2/211:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Fri 6/214:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Deal found 21/1£379
Thu 30/409:25
LGW
-
SEA
2 stops22h 04m
SWISS
Mon 11/509:55
SEA
-
LGW
2 stops23h 55m
SWISS
Deal found 20/1£380
Tue 14/415:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Thu 4/619:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 20/1£380
Tue 3/311:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Mon 16/315:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Deal found 20/1£381
Thu 19/211:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Thu 26/214:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Deal found 20/1£385
Thu 29/111:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Mon 2/214:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Deal found 21/1£386

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 22 January 2026.

Round-trip from

£374

One-way from

£245

Popular in

July

Cheapest in

February

Average price

£479
Icelandair
  • Icelandair
  • 19/5-2/6
  • 2 total stops
  • 28h 00m total
  • London to Washington
Search Deals
2/3
  • 2/3
  • 2 total stops
  • 38h 25m 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 (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 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 22 January 2026.
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

Sat 2/5

13:00-20:40

1 stop15h 40m

Seattle/Tacoma Intl

Sat 23/5

15:40-11:45

1 stop12h 05m

£373

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 2/7

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Sun 19/7

15:40-14:40

1 stop15h 00m

£412

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 20/6

15:40-11:45

1 stop28h 05m

Seattle/Tacoma Intl

Wed 8/7

19:00-14:40

1 stop11h 40m

£476

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 30/4

09:25-23:29

2 stops22h 04m

Seattle/Tacoma Intl

Sun 10/5

09:55-17:50

2 stops23h 55m

£513

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 2/5

09:25-23:29

2 stops22h 04m

Seattle/Tacoma Intl

Mon 11/5

09:55-17:50

2 stops23h 55m

£513

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Fri 1/5

09:25-23:29

2 stops22h 04m

Seattle/Tacoma Intl

Sat 9/5

10:52-08:25

2 stops37h 33m

£514

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Sun 22/3

11:55-18:00

1 stop13h 05m

Portland

Tue 31/3

15:30-14:40

1 stop15h 10m

£529

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Fri 20/3

11:55-18:00

1 stop13h 05m

Portland

Tue 31/3

15:30-14:40

1 stop15h 10m

£529

LondonPortland

LGW - PDX

LGWPDX

London Gatwick

Fri 20/3

11:55-18:00

1 stop13h 05m

Portland

Sat 4/4

15:30-14:40

1 stop15h 10m

£533

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 14/5

13:05-22:00

1 stop16h 55m

Seattle/Tacoma Intl

Sat 23/5

07:05-09:15

2 stops18h 10m

£538

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 51 results
1
2
3
...
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

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 £303). Flying from London Gatwick Airport to State of Washington in August is currently the most expensive (average of £560). 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.

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 22 January 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
7.1
Good
602 reviews
Check prices

Food

6.2

Crew

8.0

Overall

7.1

Comfort

7.0

Boarding

7.2

Entertainment

7.0

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
602 reviews
Icelandair
7.1
Good
602 reviews
Check prices

Food

6.2

Crew

8.0

Overall

7.1

Comfort

7.0

Boarding

7.2

Entertainment

7.0

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 SWISS fly from London Gatwick Airport to State of Washington in about 15h 40m. The time it takes to get you to your destination can typically vary by up to 6h 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 £303). Flying from London Gatwick Airport to State of Washington in August is currently the most expensive (average of £560). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Gatwick to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Newark flights
Heathrow to John F Kennedy Intl flights
Heathrow to LaGuardia flights
Gatwick to Newark flights
London City to John F Kennedy Intl flights
Gatwick to John F Kennedy Intl flights
Gatwick to LaGuardia flights
Heathrow to Miami flights
Heathrow to Los Angeles flights
Heathrow to Orlando flights
Stansted to John F Kennedy Intl flights
Heathrow to Las Vegas flights
London City to Newark flights
Heathrow to Dallas/Fort Worth flights
Luton to John F Kennedy Intl flights
Stansted to Newark flights
Gatwick to Orlando flights
Heathrow to San Francisco flights
Heathrow to Boston flights
Luton to Newark flights
Heathrow to O'Hare Intl flights
Gatwick to Miami flights
Heathrow to Seattle flights
Heathrow to Dulles Intl flights
London City to Miami flights
Gatwick to Los Angeles flights
Stansted to Miami flights
Heathrow to Tampa flights
Gatwick to Las Vegas flights
London City to Las Vegas flights
Heathrow to Atlanta flights
London City to Orlando flights
London City to Los Angeles flights
Heathrow to Hobby flights
Heathrow to Baltimore flights
Luton to Miami flights
Gatwick to Boston flights
Heathrow to George Bush Intcntl flights
Stansted to Los Angeles flights
Gatwick to Dallas/Fort Worth flights
Heathrow to Denver flights
Stansted to Las Vegas flights
Heathrow to Nashville flights
Stansted to Orlando flights
Heathrow to Ontario flights
Gatwick to San Francisco flights
Heathrow to Austin flights
London City to Boston flights
Heathrow to Fort Lauderdale flights
London City to Dallas/Fort Worth flights

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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£351Average£494FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Gatwick to Washington?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Washington from Gatwick today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Gatwick to Washington?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Gatwick to Washington for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Gatwick to Washington with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Gatwick to Washington flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Gatwick to Washington become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.