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Cheap flights from Washington, D.C. to London Gatwick Airport from £159

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 29/7. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LGW
5 Aug — 12 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap 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 6 July 2026.

Mon 21/922:35
IAD
-
LGW
1 stop12h 00m
TAP AIR PORTUGAL
Mon 28/916:25
LGW
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 2/7£502
Mon 24/820:30
IAD
-
LGW
2 stops17h 45m
Multiple Airlines
Tue 1/914:00
LGW
-
IAD
1 stop25h 07m
Multiple Airlines
Deal found 1/7£503
Sun 16/813:32
IAD
-
LGW
1 stop15h 28m
Multiple Airlines
Sun 23/814:00
LGW
-
IAD
1 stop31h 07m
Multiple Airlines
Deal found 2/7£504
Tue 18/811:05
IAD
-
LGW
1 stop17h 55m
Multiple Airlines
Tue 25/814:00
LGW
-
IAD
1 stop25h 07m
Multiple Airlines
Deal found 3/7£505
Mon 27/719:18
IAD
-
LGW
1 stop33h 42m
Multiple Airlines
Tue 18/814:00
LGW
-
IAD
1 stop25h 07m
Multiple Airlines
Deal found 2/7£507
Fri 14/811:10
IAD
-
LGW
1 stop17h 50m
Multiple Airlines
Wed 19/814:00
LGW
-
IAD
1 stop31h 07m
Multiple Airlines
Deal found 1/7£508
Wed 2/920:20
IAD
-
LGW
2 stops17h 55m
Multiple Airlines
Tue 8/919:55
LGW
-
IAD
2 stops26h 05m
Multiple Airlines
Deal found 3/7£510
Mon 3/811:10
IAD
-
LGW
1 stop17h 50m
Multiple Airlines
Sat 22/814:00
LGW
-
IAD
1 stop31h 07m
Multiple Airlines
Deal found 2/7£511
Mon 10/811:10
IAD
-
LGW
1 stop17h 50m
Multiple Airlines
Wed 19/814:00
LGW
-
IAD
1 stop31h 07m
Multiple Airlines
Deal found 5/7£512
Mon 17/806:00
DCA
-
LGW
2 stops29h 55m
Multiple Airlines
Mon 24/820:40
LGW
-
DCA
2 stops23h 58m
Multiple Airlines
Deal found 3/7£512
Sun 25/1020:40
IAD
-
LGW
1 stop13h 00m
Icelandair
Sun 1/1111:55
LGW
-
IAD
1 stop11h 35m
Icelandair
Deal found 2/7£513
Mon 24/820:30
BWI
-
LGW
1 stop10h 15m
Multiple Airlines
Fri 4/914:00
LGW
-
BWI
1 stop14h 59m
Multiple Airlines
Deal found 2/7£513

Find 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 6 July 2026.

Round-trip from

£502

One-way from

£159

Popular in

July

Cheapest in

January

Average price

£952
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 21/9-28/9
  • 2 total stops
  • 39h 45m total
  • Washington, D.C. to London
Search Deals
29/7
  • 29/7
  • 1 total stop
  • 13h 39m total
  • Washington, D.C. to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£116 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 6 July 2026.
Use the filters below to find and compare flights from Washington, D.C. to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 10/8

19:18-10:00

1 stop33h 42m

London Gatwick

Wed 19/8

14:00-16:07

1 stop31h 07m

£514

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 23/8

22:35-11:20

2 stops31h 45m

London Gatwick

Fri 23/10

10:35-20:35

1 stop15h 00m

£552

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 7/10

17:45-11:20

2 stops36h 35m

London Gatwick

Tue 13/10

10:35-20:35

1 stop15h 00m

£552

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 6/8

13:32-10:00

1 stop15h 28m

London Gatwick

Tue 18/8

14:00-10:07

1 stop25h 07m

£567

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Thu 19/11

19:40-10:55

1 stop10h 15m

London Gatwick

Fri 27/11

11:55-18:40

1 stop11h 45m

£574
Fastest return journey

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Mon 24/8

20:30-11:45

1 stop10h 15m

London Gatwick

Sun 30/8

15:40-22:15

1 stop11h 35m

£578

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Thu 24/9

23:20-14:40

1 stop10h 20m

London Gatwick

Wed 30/9

15:40-19:25

1 stop32h 45m

£579

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Sat 22/8

11:09-10:00

1 stop17h 51m

London Gatwick

Sat 29/8

14:00-10:24

1 stop25h 24m

£588

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 8/10

22:35-09:45

1 stop30h 10m

London Gatwick

Mon 12/10

21:15-15:10

2 stops22h 55m

£617

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 19/8

17:45-20:30

2 stops21h 45m

London Gatwick

Wed 26/8

21:15-15:10

2 stops22h 55m

£626

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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, March is the cheapest month in which you can book a flight from Washington, D.C. to London Gatwick Airport (average of £231). Flying from Washington, D.C. to London Gatwick Airport in June is currently the most expensive (average of £577). 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 67% 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 £360.

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 20m.

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 38m.

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 3641 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, March is the cheapest month in which you can book a flight from Washington, D.C. to London Gatwick Airport (average of £231). Flying from Washington, D.C. to London Gatwick Airport in June is currently the most expensive (average of £577). 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
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Croydon
Ilford
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Eastbourne
Southall
Aylesbury
Romford
Borehamwood
Southend-on-Sea
Uxbridge

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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.

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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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