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Cheap flights from Washington to London Gatwick Airport from £186

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 26/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LGW
15 Mar — 22 Mar1
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 13 February 2026.

Mon 13/419:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Sat 25/415:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 10/2£398
Mon 13/415:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Mon 20/415:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 13/2£399
Fri 27/214:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Fri 6/311:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Deal found 11/2£400
Sun 4/1015:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Mon 12/1015:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 12/2£401
Wed 15/419:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Thu 30/415:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 9/2£402
Mon 20/419:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Thu 14/513:00
LGW
-
SEA
1 stop12h 55m
Icelandair
Deal found 12/2£403
Tue 21/419:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Tue 5/513:00
LGW
-
SEA
1 stop12h 55m
Icelandair
Deal found 11/2£403
Sun 19/419:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Tue 12/513:00
LGW
-
SEA
1 stop12h 55m
Icelandair
Deal found 10/2£404
Wed 29/419:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Mon 11/515:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Deal found 12/2£405
Mon 9/315:35
SEA
-
LGW
1 stop12h 20m
Icelandair
Wed 18/311:55
LGW
-
SEA
1 stop13h 05m
Icelandair
Deal found 11/2£406
Sat 25/419:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Sat 16/515:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Deal found 12/2£406
Mon 20/415:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Thu 7/513:00
LGW
-
SEA
1 stop12h 55m
Icelandair
Deal found 9/2£407

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 13 February 2026.

Round-trip from

£398

One-way from

£186

Popular in

June

Cheapest in

January

Average price

£502
Icelandair
  • Icelandair
  • 13/4-25/4
  • 2 total stops
  • 24h 40m total
  • Washington to London
Search Deals
26/3
  • 26/3
  • 2 total stops
  • 23h 15m total
  • Washington to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£71 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 13 February 2026.
Use the filters below to find and compare flights from Washington to London Gatwick Airport that are best for you.

Fly from

Washington

Fly to

Gatwick

Route

Depart

Return

Price

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 7/4

19:00-14:40

1 stop11h 40m

London Gatwick

Tue 14/4

15:40-20:40

1 stop13h 00m

£418

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Thu 16/4

19:00-14:40

1 stop11h 40m

London Gatwick

Thu 23/4

15:40-20:40

1 stop13h 00m

£419

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 13/4

19:00-14:40

1 stop11h 40m

London Gatwick

Mon 27/4

15:40-20:40

1 stop13h 00m

£419

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sat 18/4

19:00-14:40

1 stop11h 40m

London Gatwick

Sat 25/4

15:40-20:40

1 stop13h 00m

£419

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Wed 8/4

19:00-14:40

1 stop11h 40m

London Gatwick

Tue 14/4

15:40-20:40

1 stop13h 00m

£469

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 4/8

18:40-16:00

1 stop13h 20m

London Gatwick

Tue 25/8

10:35-17:34

1 stop14h 59m

£473

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 3/8

18:40-15:45

1 stop13h 05m

London Gatwick

Tue 25/8

10:35-17:34

1 stop14h 59m

£473

PortlandLondon

PDX - LGW

PDXLGW

Portland

Tue 10/3

15:45-10:55

1 stop12h 10m

London Gatwick

Mon 16/3

11:55-18:00

1 stop13h 05m

£481

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sat 2/5

10:52-08:25

2 stops37h 33m

London Gatwick

Fri 15/5

09:25-22:42

2 stops21h 17m

£487

PortlandLondon

PDX - LGW

PDXLGW

Portland

Wed 12/8

15:50-16:00

2 stops16h 10m

London Gatwick

Tue 25/8

10:35-20:49

2 stops18h 14m

£505

Flights are sorted by cheapest return flights first.

Deals found on 9/2

Showing 1-10 of 52 results
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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

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

Currently, February is the cheapest month in which you can book a flight from State of Washington to London Gatwick Airport (average of £362). Flying from State of Washington to London Gatwick Airport in June is currently the most expensive (average of £588). 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.

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 11h 40m. The distance between State of Washington and London Gatwick Airport 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 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.

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

    Currently, February is the cheapest month in which you can book a flight from State of Washington to London Gatwick Airport (average of £362). Flying from State of Washington to London Gatwick Airport in June is currently the most expensive (average of £588). 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

Travelling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Luton
Wembley
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames
Ipswich
Bedford
Romford

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

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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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