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Washington, D.C.

$423+ Cheap flights from Gatwick (LGW) to Washington, D.C. (WAS)

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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — WAS
Jun 4 — Jun 111
Thu 6/4
Thu 6/11
1 adult, Economy
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Cheap flight deals from Gatwick to Washington, D.C.

Cheapest flights from Gatwick to Washington, D.C.
Explore the most affordable flight options available from Gatwick to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 5, 2026.

This Mytrip deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:55 am
LGW
-
IAD
1 stop11h 35m
Icelandair
Tue 11/107:40 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 5/1$576
This Gotogate deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:55 am
LGW
-
IAD
1 stop11h 35m
Icelandair
Sun 11/87:40 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 5/3$580
This The Travel House deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:55 am
LGW
-
IAD
1 stop11h 35m
Icelandair
Sun 11/87:40 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 5/3$581
This The Travel House deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:55 am
LGW
-
IAD
1 stop11h 35m
Icelandair
Sun 11/297:40 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 5/3$584
This The Travel House deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:55 am
LGW
-
IAD
1 stop11h 35m
Icelandair
Mon 12/77:40 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 5/2$589
This Gotogate deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:00 pm
LGW
-
IAD
1 stop14h 15m
Icelandair
Sat 9/128:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 5/4$590
This The Travel House deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:40 pm
LGW
-
IAD
1 stop32h 40m
Icelandair
Thu 10/88:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 5/4$592
This deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:40 pm
LGW
-
IAD
1 stop11h 35m
Icelandair
Wed 7/1511:20 pm
IAD
-
LGW
1 stop10h 20m
Icelandair
Deal found 5/4$593
This The Travel House deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/103:40 pm
LGW
-
IAD
1 stop32h 40m
Icelandair
Wed 10/1411:20 pm
IAD
-
LGW
1 stop10h 20m
Icelandair
Deal found 5/4$594
This Gotogate deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/13:40 pm
LGW
-
IAD
1 stop32h 40m
Icelandair
Wed 9/308:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 5/2$595
This FlightHub deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:55 am
LGW
-
IAD
1 stop11h 35m
Icelandair
Tue 12/17:40 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 4/30$596
This The Travel House deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:40 pm
LGW
-
IAD
1 stop11h 35m
Icelandair
Sun 9/208:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 5/4$597

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

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Washington, D.C. (WAS). 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 May 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$580
(Gotogate)

One-way from

$423
(Norse)

Popular in

December

Cheapest in

April

Average price

$667
Provider with most accurate pricing for London Gatwick-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Gatwick-Washington, D.C. (WAS) flights.
Search Deals
From London Gatwick to Washington, D.C. (WAS)
Search Deals
One-way flight from London Gatwick to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Gatwick to Washington, D.C. 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 2,558,603 searches. Data last updated May 5, 2026.
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 - IAD

LGWIAD

London Gatwick

Mon 6/1

3:40 pm-7:20 pm

1 stop32h 40m

Washington, D.C. Dulles Intl

Sun 6/14

11:20 pm-11:45 am

1 stop31h 25m

$629

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 6/16

3:40 pm-7:20 pm

1 stop32h 40m

Washington, D.C. Dulles Intl

Mon 9/7

8:30 pm-11:45 am

1 stop10h 15m

$658

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Mon 6/1

12:20 pm-9:44 pm

1 stop14h 24m

Washington, D.C. Reagan-National

Mon 6/8

2:55 pm-9:35 am

1 stop13h 40m

$715

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Mon 6/1

10:25 am-7:35 pm

1 stop14h 10m

Washington, D.C. Dulles Intl

Wed 6/10

9:45 pm-4:00 pm

1 stop13h 15m

$744

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Mon 7/13

10:25 am-7:35 pm

1 stop14h 10m

Washington, D.C. Dulles Intl

Wed 8/12

6:15 pm-9:25 am

1 stop10h 10m

$749

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Mon 6/1

10:25 am-10:56 pm

2 stops17h 31m

Washington, D.C. Dulles Intl

Wed 6/10

9:45 pm-4:00 pm

1 stop13h 15m

$750

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 7/14

5:00 pm-11:49 am

2 stops23h 49m

Washington, D.C. Dulles Intl

Wed 8/12

11:10 am-9:25 am

2 stops17h 15m

$757

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Sun 9/20

2:00 pm-11:51 pm

1 stop14h 51m

Baltimore/Washington

Tue 10/20

12:20 pm-10:00 am

1 stop16h 40m

$763
Quickest round-trip

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 5/27

12:20 pm-7:59 pm

1 stop12h 39m

Washington, D.C. Reagan-National

Tue 6/2

5:25 pm-9:35 am

1 stop11h 10m

$775

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 5/28

10:45 am-11:26 pm

1 stop17h 41m

Washington, D.C. Reagan-National

Wed 6/3

10:23 am-6:50 am

1 stop15h 27m

$779

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

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
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 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, August is the cheapest month in which you can book a flight from London Gatwick Airport to Washington, D.C. (average of $190). Flying from London Gatwick Airport to Washington, D.C. in December is currently the most expensive (average of $600). 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.?

Related info for your journey

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

    Departing from London Gatwick Airport to Washington, D.C. will take you 14h 10m. 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, August is the cheapest month in which you can book a flight from London Gatwick Airport to Washington, D.C. (average of $190). Flying from London Gatwick Airport to Washington, D.C. in December is currently the most expensive (average of $600). 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
Tysons
Owings Mills
Springfield
Arlington
Silver Spring
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Woodbridge
Hanover
Laurel
Largo
Upper Marlboro
Waldorf
Clinton
Hunt Valley
Cordova

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Alternative routes for Gatwick to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
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Heathrow to Reagan-National flights
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