Cheap flights from Washington, D.C. to London Gatwick Airport from £125

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LGW
12 Oct — 19 Oct1
1 adult
1 adult, Economy

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 12 September 2025.

Round-trip from

£362

One-way from

£125

Popular in

February

Cheapest in

January

Average price

£442
Icelandair
  • Icelandair
  • 15/10-20/10
  • 2 total stops
  • 45h 50m total
  • Washington, D.C. to London
7/10
  • 7/10
  • 1 total stop
  • 17h 41m total
  • Washington, D.C. to London
Highest demand for flights based on searches. 10% potential increase in price (£49 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Average for round-trip flights in September 2025

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

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 12 September 2025.

Wed 15/1020:30IAD - LGW
1 stop13h 10mIcelandair
Mon 20/1015:40LGW - IAD
1 stop32h 40mIcelandair
Deal found 11/9£362
Tue 30/920:30IAD - LGW
1 stop13h 10mIcelandair
Wed 8/1015:40LGW - IAD
1 stop11h 30mIcelandair
Deal found 11/9£363
Wed 8/1020:30IAD - LGW
1 stop13h 10mIcelandair
Wed 29/1011:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 10/9£364
Tue 30/920:30IAD - LGW
1 stop13h 10mIcelandair
Fri 10/1015:40LGW - IAD
1 stop11h 30mIcelandair
Deal found 11/9£365
Wed 15/1023:15IAD - LGW
1 stop10h 25mIcelandair
Thu 23/1015:40LGW - IAD
1 stop32h 40mIcelandair
Deal found 11/9£365
Sat 18/1023:15IAD - LGW
1 stop10h 20mIcelandair
Thu 30/1011:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 10/9£366
Wed 5/1119:40IAD - LGW
2 stops13h 50mMultiple Airlines
Wed 12/1108:50LGW - IAD
2 stops14h 40mMultiple Airlines
Deal found 11/9£368
Tue 28/1020:40IAD - LGW
2 stops18h 50mMultiple Airlines
Tue 11/1108:50LGW - IAD
2 stops14h 40mMultiple Airlines
Deal found 11/9£368
Mon 29/920:30IAD - LGW
1 stop13h 05mIcelandair
Fri 10/1015:40LGW - IAD
1 stop11h 30mIcelandair
Deal found 12/9£369
Tue 28/1018:30IAD - LGW
1 stop17h 15mTAP AIR PORTUGAL
Fri 7/1110:40LGW - IAD
1 stop15h 20mTAP AIR PORTUGAL
Deal found 10/9£371
Wed 19/1119:40IAD - LGW
1 stop10h 15mIcelandair
Mon 24/1111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 10/9£374
Fri 7/1119:40IAD - LGW
2 stops17h 50mMultiple Airlines
Tue 11/1108:50LGW - IAD
2 stops14h 40mMultiple Airlines
Deal found 11/9£377

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 12 September 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

Mon 1/12

19:40-10:55

1 stop10h 15m

London Gatwick

Sat 13/12

11:55-18:30

1 stop11h 35m

£382

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 30/11

19:40-10:55

1 stop10h 15m

London Gatwick

Sat 13/12

11:55-18:30

1 stop11h 35m

£382

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 17/11

19:40-10:55

1 stop10h 15m

London Gatwick

Fri 21/11

11:55-18:30

1 stop11h 35m

£382

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 18/11

19:40-10:55

1 stop10h 15m

London Gatwick

Tue 25/11

11:55-18:30

1 stop11h 35m

£382

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 8/12

19:40-10:55

1 stop10h 15m

London Gatwick

Fri 23/1

11:55-18:30

1 stop11h 35m

£382

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 7/12

19:40-10:55

1 stop10h 15m

London Gatwick

Fri 23/1

11:55-18:30

1 stop11h 35m

£382

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 16/11

19:40-10:55

1 stop10h 15m

London Gatwick

Fri 21/11

11:55-18:30

1 stop11h 35m

£382

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 4/12

19:40-10:55

1 stop10h 15m

London Gatwick

Fri 23/1

11:55-18:30

1 stop11h 35m

£382

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 8/12

19:40-10:55

1 stop10h 15m

London Gatwick

Sat 17/1

11:55-18:30

1 stop11h 35m

£382

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 7/12

19:40-10:55

1 stop10h 15m

London Gatwick

Sat 17/1

11:55-18:30

1 stop11h 35m

£382

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 59 results
1
2
3
...
6

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 £102). Flying from Washington, D.C. to London Gatwick Airport in July is currently the most expensive (average of £142). 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 57% 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.

New York (JFK) is the most affordable one-stop option, with an average return flight price of £531.

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 26m.

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?

  • 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 £102). Flying from Washington, D.C. to London Gatwick Airport in July is currently the most expensive (average of £142). 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
Hounslow
Gatwick
Slough
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Winchester
Chichester
Ipswich
Dartford
Eastbourne
Guildford
Bishop's Stortford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£474Average£894FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.