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Cheap flights from Washington to London Gatwick Airport from £187

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LGW
18 Aug — 25 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington to Gatwick

Enter your travel dates to find the best prices.

Cheapest flights from Washington to Gatwick
Explore the most affordable flight options available from Washington to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 July 2026.

Wed 7/1019:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Wed 21/1015:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Deal found 17/7£480
Sun 18/1019:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Thu 29/1011:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Deal found 16/7£481
Fri 9/1015:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Tue 13/1015:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Deal found 16/7£482
Wed 14/1019:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Fri 23/1015:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 16/7£483
Wed 7/1015:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Fri 23/1015:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 17/7£484
Mon 31/819:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Tue 8/915:40
LGW
-
SEA
1 stop28h 05m
Icelandair
Deal found 17/7£486
Mon 31/823:25
SEA
-
LGW
1 stop31h 15m
Icelandair
Thu 10/915:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 17/7£488
Mon 21/915:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Sat 26/915:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 16/7£489
Wed 11/1114:35
SEA
-
LGW
1 stop18h 50m
Multiple Airlines
Thu 19/1110:10
LGW
-
SEA
1 stop14h 50m
Multiple Airlines
Deal found 15/7£490
Sat 5/919:00
SEA
-
LGW
1 stop11h 35m
Icelandair
Thu 17/915:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 16/7£491
Sat 22/823:25
SEA
-
LGW
1 stop31h 15m
Icelandair
Sat 5/915:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 15/7£491
Wed 16/919:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Tue 22/915:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 16/7£492

Find flight deals from Washington to Gatwick

Keep the following information in mind while searching for Washington to Gatwick flight deals. Data was last updated 19 July 2026.

Round-trip from

£480

One-way from

£187

Popular in

June

Cheapest in

January

Average price

£757
Icelandair
  • Icelandair
  • 7/10-21/10
  • 2 total stops
  • 45h 55m total
  • Washington to London
Search Deals
14/10
  • 14/10
  • 2 total stops
  • 16h 50m total
  • Washington to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£127 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington to Gatwick 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 19 July 2026.
Use the filters below to find and compare flights from Washington to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Thu 1/10

18:05-18:50

1 stop16h 45m

London Gatwick

Thu 8/10

10:20-16:00

1 stop13h 40m

£660

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 23/11

11:25-15:45

2 stops20h 20m

London Gatwick

Mon 30/11

10:00-15:21

1 stop13h 21m

£710
Fastest return journey

PortlandLondon

PDX - LGW

PDXLGW

Portland

Tue 24/11

14:45-10:55

1 stop12h 10m

London Gatwick

Sun 29/11

11:55-17:00

1 stop13h 05m

£712

PortlandLondon

PDX - LGW

PDXLGW

Portland

Tue 29/9

07:02-08:25

2 stops17h 23m

London Gatwick

Tue 13/10

18:35-19:06

2 stops32h 31m

£716

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Sun 25/10

07:00-09:00

2 stops19h 00m

London Gatwick

Mon 2/11

10:00-21:11

2 stops19h 11m

£717

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Sat 24/10

09:23-10:00

2 stops16h 37m

London Gatwick

Fri 30/10

10:00-23:59

2 stops20h 59m

£717

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Fri 6/11

11:05-15:45

2 stops20h 40m

London Gatwick

Sun 15/11

10:00-15:21

1 stop13h 21m

£717

PortlandLondon

PDX - LGW

PDXLGW

Portland

Tue 8/9

07:00-09:25

2 stops18h 25m

London Gatwick

Fri 25/9

10:25-22:02

2 stops19h 37m

£727

PortlandLondon

PDX - LGW

PDXLGW

Portland

Fri 14/8

07:00-10:00

1 stop19h 00m

London Gatwick

Fri 21/8

14:00-20:12

1 stop38h 12m

£728

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Wed 12/8

16:20-16:00

2 stops15h 40m

London Gatwick

Tue 15/9

10:35-22:56

2 stops20h 21m

£728

Flights are sorted by cheapest return flights first.

Deals found on 16/7

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from Washington to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Washington 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 Washington to London Gatwick Airport

How much does it cost for a return flight from State of Washington to London Gatwick Airport?

Related info for your journey

Find useful and relevant information for your journey from Washington to Gatwick. 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 State of Washington to London Gatwick Airport?

    Departing from State of Washington to London Gatwick Airport will take you 12h 10m. The distance between State of Washington and London Gatwick Airport is about 4921 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from State of Washington to London Gatwick Airport?

    Most travelers choose Seattle/Tacoma Intl - London Gatwick, Portland - London Gatwick or Spokane - London Gatwick when deciding on the best route from State of Washington to London Gatwick Airport.

  • Can I find deals for flights from Washington to Gatwick that include hotel bookings?

    Yes. In addition to deals on Washington to Gatwick flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington to Gatwick?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Gatwick.

  • Can I find deals for business class flights from Washington to Gatwick?

    Yes. Cheapflights offers flight deals from Washington to Gatwick 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

Travelling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Watford
Eastbourne
Southend-on-Sea
Kingston upon Thames
Southall
Aylesbury
Romford
Enfield
Borehamwood

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington to Gatwick

See prices for flight routes from nearby airports that may be better suited for you.
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Yes, we can. To see specific flights from Washington to Gatwick with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Washington to Gatwick flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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