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Cheap flights from Washington to London Gatwick Airport from £201

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 17/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LGW
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Find 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 15 October 2025.

Mon 3/1114:35SEA - LGW
1 stop12h 20mIcelandair
Tue 18/1111:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 13/10£388
Sat 15/1114:35SEA - LGW
1 stop12h 20mIcelandair
Fri 21/1111:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 14/10£388
Fri 5/1214:35SEA - LGW
1 stop12h 20mIcelandair
Sun 14/1211:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 13/10£389
Thu 27/1114:35SEA - LGW
2 stops22h 25mMultiple Airlines
Thu 4/1208:50LGW - SEA
2 stops16h 10mMultiple Airlines
Deal found 13/10£397
Sat 15/1114:35SEA - LGW
1 stop12h 20mIcelandair
Mon 24/1111:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 14/10£403
Fri 7/1114:35SEA - LGW
1 stop12h 20mIcelandair
Mon 17/1111:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 13/10£403
Wed 12/1120:05SEA - LGW
1 stop13h 15mMultiple Airlines
Wed 19/1111:15LGW - SEA
1 stop15h 05mMultiple Airlines
Deal found 13/10£405
Mon 10/1120:05SEA - LGW
1 stop15h 20mMultiple Airlines
Wed 19/1108:50LGW - SEA
1 stop17h 30mMultiple Airlines
Deal found 12/10£406
Thu 13/1114:35SEA - LGW
1 stop12h 20mIcelandair
Mon 17/1111:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 15/10£412
Tue 11/1109:50PDX - LGW
3 stops27h 15mMultiple Airlines
Tue 18/1117:45LGW - PDX
3 stops32h 45mMultiple Airlines
Deal found 14/10£412
Tue 11/1110:05SEA - LGW
3 stops27h 00mMultiple Airlines
Tue 18/1111:25LGW - SEA
2 stops33h 55mMultiple Airlines
Deal found 13/10£419
Sat 8/1114:35SEA - LGW
1 stop12h 20mIcelandair
Tue 18/1111:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 13/10£420

Cheap flight deals from Washington to Gatwick

Keep the following information in mind while searching for Washington to Gatwick flight deals. Data was last updated 15 October 2025.

Round-trip from

£388

One-way from

£201

Popular in

June

Cheapest in

October

Average price

£498
Icelandair
  • Icelandair
  • 3/11-18/11
  • 2 total stops
  • 25h 25m total
  • Washington to London
Search Deals
17/11
  • 17/11
  • 3 total stops
  • 58h 24m total
  • Washington to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£77 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 October 2025
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 15 October 2025.
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

Thu 6/11

14:35-10:55

1 stop12h 20m

London Gatwick

Thu 20/11

11:55-17:00

1 stop13h 05m

£388

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 4/11

14:35-10:55

1 stop12h 20m

London Gatwick

Thu 20/11

11:55-17:00

1 stop13h 05m

£388

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sat 15/11

14:35-10:55

1 stop12h 20m

London Gatwick

Wed 19/11

11:55-17:00

1 stop13h 05m

£388

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Fri 7/11

14:35-10:55

1 stop12h 20m

London Gatwick

Wed 12/11

11:55-17:00

1 stop13h 05m

£388

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 18/11

14:35-10:55

1 stop12h 20m

London Gatwick

Sun 23/11

11:55-17:00

1 stop13h 05m

£388

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Wed 19/11

14:35-10:55

1 stop12h 20m

London Gatwick

Sun 23/11

11:55-17:00

1 stop13h 05m

£388

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 5/1

14:35-10:55

1 stop12h 20m

London Gatwick

Fri 9/1

11:55-17:00

1 stop13h 05m

£419

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sun 8/2

06:00-09:00

2 stops19h 00m

London Gatwick

Wed 25/2

12:30-12:13

2 stops31h 43m

£428

PortlandLondon

PDX - LGW

PDXLGW

Portland

Tue 11/11

14:45-16:20

2 stops17h 35m

London Gatwick

Tue 18/11

19:30-17:00

3 stops29h 30m

£439

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 13/4

15:45-14:40

1 stop14h 55m

London Gatwick

Wed 22/4

15:40-20:45

1 stop13h 05m

£474

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 54 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, April is the cheapest month in which you can book a flight from State of Washington to London Gatwick Airport (average of £364). Flying from State of Washington to London Gatwick Airport in June is currently the most expensive (average of £603). 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 12h 20m. 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, April is the cheapest month in which you can book a flight from State of Washington to London Gatwick Airport (average of £364). Flying from State of Washington to London Gatwick Airport in June is currently the most expensive (average of £603). 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
Slough
Gatwick
Hounslow
Luton
Wembley
Deal
Ilford
Crawley
Hayes
Watford
Winchester
Chichester
Romford
Ipswich
Brentford
Dartford
Guildford
Eastbourne

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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, 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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