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Cheap flights from Washington, D.C. to London Gatwick Airport from £144

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LGW
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington, D.C. to Gatwick

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Gatwick (LGW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 November 2025.

Round-trip from

£429

One-way from

£144

Popular in

February

Cheapest in

January

Average price

£444
Icelandair
  • Icelandair
  • 8/12-19/1
  • 2 total stops
  • 21h 50m total
  • Washington, D.C. to London
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9/2
  • 9/2
  • 1 total stop
  • 17h 30m total
  • Washington, D.C. to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£43 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find flight deals from Washington, D.C. to Gatwick

Enter your travel dates to find the best prices.

Cheapest flights from Washington, D.C. to Gatwick
Explore the most affordable flight options available from Washington, D.C. to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Tue 11/1119:40IAD - LGW
1 stop10h 15mIcelandair
Fri 21/1111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 6/11£429
Tue 11/1119:40IAD - LGW
1 stop10h 15mIcelandair
Thu 20/1111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 5/11£430
Sun 16/1122:30IAD - LGW
2 stops17h 05mTAP AIR PORTUGAL
Wed 14/110:40LGW - IAD
1 stop15h 20mTAP AIR PORTUGAL
Deal found 6/11£432
Sun 30/1122:30IAD - LGW
2 stops17h 05mTAP AIR PORTUGAL
Wed 10/1216:35LGW - IAD
1 stop27h 40mTAP AIR PORTUGAL
Deal found 5/11£432
Mon 10/1119:40IAD - LGW
1 stop10h 15mIcelandair
Wed 26/1111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 6/11£433
Wed 12/1119:40IAD - LGW
1 stop10h 15mIcelandair
Tue 25/1111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 6/11£434
Thu 13/1119:40IAD - LGW
1 stop10h 15mIcelandair
Thu 20/1111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 5/11£435
Tue 18/1116:30IAD - LGW
2 stops13h 20mMultiple Airlines
Mon 24/1121:30LGW - IAD
2 stops23h 20mMultiple Airlines
Deal found 5/11£435
Sun 23/1121:00IAD - LGW
1 stop13h 35mMultiple Airlines
Tue 25/1108:50LGW - IAD
1 stop11h 45mMultiple Airlines
Deal found 6/11£437
Mon 17/1119:40IAD - LGW
1 stop10h 15mIcelandair
Mon 24/1111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 5/11£438
Sun 9/1119:40IAD - LGW
1 stop10h 15mIcelandair
Tue 18/1111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 5/11£441
Sun 9/1121:00IAD - LGW
1 stop13h 55mMultiple Airlines
Tue 18/1108:50LGW - IAD
1 stop11h 45mMultiple Airlines
Deal found 6/11£441

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington, D.C. 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 7 November 2025.
Use the filters below to find and compare flights from Washington, D.C. to London Gatwick Airport that are best for you.

Fly from

Washington, D.C.

Fly to

Gatwick

Route

Depart

Return

Price

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sat 7/3

19:40-10:55

1 stop10h 15m

London Gatwick

Mon 23/3

11:55-19:30

1 stop11h 35m

£429

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sat 17/1

15:33-10:05

1 stop13h 32m

London Gatwick

Tue 20/1

17:20-21:00

2 stops32h 40m

£439

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 1/5

20:30-14:40

1 stop13h 10m

London Gatwick

Sun 3/5

13:00-19:20

1 stop11h 20m

£440

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 11/12

17:30-09:50

1 stop11h 20m

London Gatwick

Tue 16/12

21:20-21:00

2 stops28h 40m

£457

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Fri 5/12

20:00-10:05

1 stop33h 05m

London Gatwick

Fri 12/12

14:00-09:22

1 stop24h 22m

£464

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 11/3

20:40-10:55

1 stop10h 15m

London Gatwick

Sat 21/3

11:55-19:30

1 stop11h 35m

£477

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Sat 7/3

19:40-10:55

1 stop10h 15m

London Gatwick

Sun 22/3

11:55-19:40

1 stop11h 45m

£479

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Tue 10/3

20:40-10:55

1 stop10h 15m

London Gatwick

Sun 22/3

11:55-19:40

1 stop11h 45m

£479

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Mon 17/11

11:29-10:00

1 stop17h 31m

London Gatwick

Thu 20/11

14:00-08:23

1 stop23h 23m

£486

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Fri 28/11

19:40-10:55

1 stop10h 15m

London Gatwick

Tue 2/12

11:55-18:40

1 stop11h 45m

£487

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Gatwick

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

What is the cheapest month to book a flight from Washington, D.C. to London Gatwick Airport?

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. to London Gatwick Airport (average of £322). Flying from Washington, D.C. to London Gatwick Airport in June is currently the most expensive (average of £719). 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.

What’s the top stopover airport for flights from Washington, D.C. to London Gatwick Airport?

Share of one-stop return flights from Washington, D.C. to London Gatwick Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 50% of one-stop itineraries from Washington, D.C. to London Gatwick Airport on Cheapflights.

What’s the cheapest stopover airport for flights from Washington, D.C. to London Gatwick Airport?

Average return fare for one-stop flights from Washington, D.C. to London Gatwick Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £447.

What’s the fastest stopover option from Washington, D.C. to London Gatwick Airport?

Shortest average travel time for one-stop one-way flights from Washington, D.C. to London Gatwick Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 10h 15m.

Which airport typically offers the quickest stopover for flights from Washington, D.C. to London Gatwick Airport?

Average stopover duration for one-stop one-way flights from Washington, D.C. to London Gatwick Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 30m.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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 Washington, D.C. to London Gatwick Airport?

    Departing from Washington, D.C. to London Gatwick Airport will take you 10h 15m. There are 3683 mi between Washington, D.C. and London Gatwick Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Washington, D.C. to London Gatwick Airport?

    The most popular flight routes from Washington, D.C. to London Gatwick Airport are Washington, D.C. Dulles Intl - London Gatwick, Baltimore/Washington - London Gatwick and Washington, D.C. Reagan-National - London Gatwick.

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

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

  • How can I find direct flights from Washington, D.C. to Gatwick?

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

  • Can I find deals for business class flights from Washington, D.C. to Gatwick?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to London Gatwick Airport?

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. to London Gatwick Airport (average of £322). Flying from Washington, D.C. to London Gatwick Airport in June is currently the most expensive (average of £719). 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
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Crawley
Brentford
Romford
Chichester
Ipswich
Bedford
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Washington, D.C. to Gatwick

Discover the top airline that operate flights from Washington, D.C. to Gatwick. 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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£567Average£892FlexibilityNo 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 Washington, D.C. to Gatwick?

Cheapflights makes it easy to find Washington, D.C. to Gatwick flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Gatwick?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Washington, D.C. to Gatwick.

Can Cheapflights find flights from Washington, D.C. to Gatwick with no change fees?

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

Can Cheapflights notify me if prices for flights from Washington, D.C. to Gatwick become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Gatwick from Washington, D.C. today and book when prices fit your budget.

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