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Washington, D.C.

$342+ Cheap flights from Gatwick (LGW) to Washington, D.C. (WAS)

LGW — WAS
Sep 18 — Sep 251
Fri 9/18
Fri 9/25
1 adult, Economy
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Cheap flight deals from Gatwick to Washington, D.C.

Cheapest flights from Gatwick to Washington, D.C.

Fri 10/233:40 pm -
1 stop32h 40m
Sun 11/87:40 pm -
1 stop10h 15m
Deal found 8/16$581
Wed 10/143:40 pm -
1 stop32h 40m
Wed 10/2111:15 pm -
1 stop10h 25m
Deal found 8/15$583
Thu 9/243:40 pm -
1 stop32h 40m
Wed 10/711:20 pm -
1 stop10h 20m
Deal found 8/17$584
Sat 8/293:40 pm -
1 stop11h 35m
Fri 9/118:30 pm -
1 stop13h 10m
Deal found 8/17$586
Tue 8/253:40 pm -
1 stop32h 40m
Fri 9/118:30 pm -
1 stop13h 10m
Deal found 8/17$587
Mon 8/313:40 pm -
1 stop32h 40m
Mon 9/78:30 pm -
1 stop10h 15m
Deal found 8/15$588
Thu 9/101:00 pm -
1 stop11h 20m
Wed 9/238:30 pm -
1 stop13h 10m
Deal found 8/15$589
Fri 9/43:40 pm -
1 stop11h 35m
Fri 9/118:30 pm -
1 stop13h 10m
Deal found 8/16$591
Wed 9/23:40 pm -
1 stop32h 40m
Wed 9/98:30 pm -
1 stop10h 15m
Deal found 8/16$593
Mon 8/313:40 pm -
1 stop32h 40m
Tue 9/88:30 pm -
1 stop13h 10m
Deal found 8/15$594
Thu 9/173:40 pm -
1 stop32h 40m
Wed 9/238:30 pm -
1 stop13h 10m
Deal found 8/18$595
Fri 12/411:45 am -
2 stops36h 46m
Sun 12/135:10 pm -
2 stops20h 50m
Deal found 8/14$636

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

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$581
(The Travel House)

One-way from

$342
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$747
Provider with most accurate pricing for London Gatwick-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for London Gatwick-Washington, D.C. (WAS) flights.
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From London Gatwick to Washington, D.C. (WAS)
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One-way flight from London Gatwick to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 17% potential increase in price ($148 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Thu 11/5

10:00 am-4:30 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Wed 11/18

9:30 pm-3:45 pm

1 stop13h 15m

$618

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Sun 10/11

10:25 am-7:35 pm

1 stop14h 10m

Washington, D.C. Dulles Intl

Mon 10/26

10:30 pm-3:45 pm

1 stop13h 15m

$619

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Fri 1/8

10:00 am-9:12 pm

2 stops16h 12m

Washington, D.C. Dulles Intl

Sat 1/16

11:05 am-3:45 pm

2 stops23h 40m

$633
Quickest round-trip

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Sat 10/3

10:25 am-7:35 pm

1 stop14h 10m

Washington, D.C. Dulles Intl

Sat 10/10

6:15 pm-9:20 am

1 stop10h 05m

$636

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Sat 9/5

5:00 pm-4:05 pm

1 stop28h 05m

Washington, D.C. Dulles Intl

Sun 9/13

6:15 pm-4:00 pm

1 stop16h 45m

$637

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Sun 11/8

10:00 am-12:42 am

2 stops19h 42m

Washington, D.C. Dulles Intl

Thu 11/12

7:30 am-9:00 am

2 stops20h 30m

$660

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Fri 11/6

9:35 pm-3:15 pm

2 stops22h 40m

Washington, D.C. Dulles Intl

Wed 11/18

10:30 pm-3:05 pm

1 stop11h 35m

$670

LondonWashington, D.C.

LGW London Gatwick - DCA Washington, D.C. Reagan-National

LGWDCA

London Gatwick

Wed 10/7

11:30 am-7:05 pm

2 stops36h 35m

Washington, D.C. Reagan-National

Wed 10/14

2:56 pm-8:00 pm

2 stops24h 04m

$672

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Tue 9/29

10:35 am-11:14 pm

2 stops17h 39m

Washington, D.C. Dulles Intl

Tue 10/6

6:32 pm-4:00 pm

2 stops16h 28m

$683

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Fri 10/2

5:00 pm-11:45 am

2 stops23h 45m

Washington, D.C. Dulles Intl

Tue 10/13

8:13 am-9:25 am

2 stops20h 12m

$689

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 60 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on London Gatwick Airport-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Gatwick Airport-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Gatwick Airport-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Gatwick Airport-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Gatwick Airport-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Gatwick to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Gatwick with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from London Gatwick Airport to Washington, D.C.

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

Currently, November is the cheapest month in which you can book a flight from London Gatwick Airport to Washington, D.C. (average of $493). Flying from London Gatwick Airport to Washington, D.C. in July is currently the most expensive (average of $949). 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 to fly round-trip from London Gatwick Airport to Washington, D.C.?

Airfare is below average for this route at the moment.
London Gatwick Airport to Washington, D.C. flights typically cost between $737 and $951 in October.
The cheapest round-trip price found within the last 5 days was $581 on Icelandair (Oct 23-Nov 8).

Related info for your journey

  • How long is the flight from London Gatwick Airport to Washington, D.C.?

    Departing from London Gatwick Airport to Washington, D.C. will take you 12h 20m. London Gatwick Airport and Washington, D.C. are separated by a distance of 3683 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from London Gatwick Airport to Washington, D.C. (average of $493). Flying from London Gatwick Airport to Washington, D.C. in July is currently the most expensive (average of $949). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Owings Mills
Arlington
Tysons
Lanham
Reston
Herndon
Rockville
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Springfield
Oxon Hill
Clinton
Hunt Valley
Woodbridge
Silver Spring
Largo

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Gatwick to Washington, D.C.

Heathrow to Dulles Intl flights
Heathrow to Reagan-National flights
Gatwick to Dulles Intl flights
London City to Dulles Intl flights

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