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Cheap flights from Washington to London Gatwick Airport from £166

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LGW
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

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 27 November 2025.

Wed 3/1214:35SEA - LGW
1 stop12h 20mIcelandair
Tue 9/1211:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 24/11£444
Wed 3/1214:35SEA - LGW
1 stop12h 20mIcelandair
Wed 10/1211:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 25/11£461
Mon 1/1214:35SEA - LGW
1 stop12h 20mIcelandair
Tue 9/1211:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 24/11£467
Thu 4/1214:35SEA - LGW
1 stop12h 20mIcelandair
Wed 10/1211:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 24/11£482
Mon 15/1220:05SEA - LGW
1 stop15h 20mMultiple Airlines
Mon 22/1209:00LGW - SEA
1 stop17h 20mMultiple Airlines
Deal found 25/11£495
Mon 1/1214:35SEA - LGW
1 stop12h 20mIcelandair
Wed 10/1211:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 24/11£497
Mon 15/1206:25SEA - LGW
2 stops30h 35mMultiple Airlines
Fri 26/1209:40LGW - SEA
1 stop16h 40mMultiple Airlines
Deal found 26/11£514
Tue 25/1114:35SEA - LGW
1 stop12h 20mIcelandair
Thu 4/1211:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 24/11£525
Thu 27/1114:35SEA - LGW
1 stop12h 20mIcelandair
Thu 4/1211:55LGW - SEA
1 stop13h 05mIcelandair
Deal found 26/11£533
Mon 15/1220:05SEA - LGW
1 stop15h 20mMultiple Airlines
Thu 25/1218:40LGW - SEA
2 stops31h 40mMultiple Airlines
Deal found 26/11£553
Tue 2/1214:45PDX - LGW
2 stops17h 55mMultiple Airlines
Wed 10/1208:15LGW - PDX
2 stops16h 45mMultiple Airlines
Deal found 26/11£594
Sat 29/1114:45PDX - LGW
1 stop12h 10mIcelandair
Fri 5/1211:55LGW - PDX
1 stop13h 05mIcelandair
Deal found 24/11£603

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 27 November 2025.

Round-trip from

£445

One-way from

£166

Popular in

June

Cheapest in

October

Average price

£500
Icelandair
  • Icelandair
  • 9/1-16/1
  • 2 total stops
  • 25h 25m total
  • Washington to London
Search Deals
11/1
  • 11/1
  • 3 total stops
  • 56h 41m total
  • Washington to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£80 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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 27 November 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

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Wed 4/3

05:51-09:00

2 stops19h 09m

London Gatwick

Mon 9/3

12:30-16:54

2 stops35h 24m

£470

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sat 11/4

15:45-14:40

1 stop14h 55m

London Gatwick

Tue 12/5

15:40-18:00

1 stop34h 20m

£473

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Fri 9/1

12:35-17:50

2 stops21h 15m

London Gatwick

Fri 16/1

18:40-21:12

2 stops34h 32m

£477

PortlandLondon

PDX - LGW

PDXLGW

Portland

Sat 16/5

15:45-14:40

1 stop14h 55m

London Gatwick

Sun 7/6

13:00-17:55

1 stop12h 55m

£483

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 3/3

14:44-06:00

1 stop31h 16m

London Gatwick

Tue 17/3

13:00-19:25

1 stop37h 25m

£495

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sun 1/2

11:06-06:00

1 stop34h 54m

London Gatwick

Mon 9/2

13:00-10:26

1 stop29h 26m

£530

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Fri 27/3

15:35-13:40

1 stop15h 05m

London Gatwick

Wed 1/4

15:40-20:45

1 stop13h 05m

£583

PortlandLondon

PDX - LGW

PDXLGW

Portland

Thu 23/4

15:45-14:40

1 stop14h 55m

London Gatwick

Wed 29/4

15:40-00:03

2 stops16h 23m

£599

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Tue 17/2

12:00-10:55

2 stops14h 55m

London Gatwick

Wed 4/3

11:55-19:49

2 stops15h 54m

£610

PortlandLondon

PDX - LGW

PDXLGW

Portland

Wed 6/5

07:00-06:20

1 stop15h 20m

London Gatwick

Tue 12/5

13:05-12:27

1 stop31h 22m

£612

Flights are sorted by cheapest return flights first.

Deals found on 25/11

Showing 1-10 of 57 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, May is the cheapest month in which you can book a flight from State of Washington to London Gatwick Airport (average of £374). Flying from State of Washington to London Gatwick Airport in June is currently the most expensive (average of £608). 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.

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 14h 55m. 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.

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

    Currently, May is the cheapest month in which you can book a flight from State of Washington to London Gatwick Airport (average of £374). Flying from State of Washington to London Gatwick Airport in June is currently the most expensive (average of £608). 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
Slough
Croydon
Hounslow
Gatwick
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Brentford
Winchester
Crawley
Romford
Chichester
Bedford
Guildford
Ipswich

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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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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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