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Cheap flights from London Gatwick Airport to Washington, D.C. from £327

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — WAS
6 Aug — 13 Aug1
1 adult
1 adult, Economy, 0 bags

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

Enter your travel dates to find the best prices.

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 7 July 2026.

Fri 23/1015:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Sat 31/1020:40
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 7/7£439
Sun 13/1211:55
LGW
-
IAD
1 stop11h 35m
Icelandair
Thu 7/119:40
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 5/7£439
Fri 28/815:40
LGW
-
IAD
1 stop11h 35m
Icelandair
Sat 5/920:30
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 3/7£440
Sat 31/1011:55
LGW
-
IAD
1 stop11h 35m
Icelandair
Sat 7/1119:40
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 6/7£441
Fri 28/815:40
LGW
-
IAD
1 stop11h 35m
Icelandair
Sun 18/1023:20
IAD
-
LGW
1 stop10h 20m
Icelandair
Deal found 4/7£442
Mon 14/1211:55
LGW
-
IAD
1 stop11h 35m
Icelandair
Thu 7/119:40
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 2/7£443
Fri 9/1015:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Tue 13/1020:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 3/7£445
Tue 1/913:00
LGW
-
IAD
1 stop11h 20m
Icelandair
Sat 31/1020:40
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 7/7£446
Sun 22/1110:40
LGW
-
IAD
1 stop14h 55m
TAP AIR PORTUGAL
Sun 29/1122:30
IAD
-
LGW
1 stop12h 15m
TAP AIR PORTUGAL
Deal found 3/7£447
Fri 9/1015:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Mon 12/1020:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 7/7£448
Wed 26/815:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Sat 5/920:30
IAD
-
LGW
1 stop10h 15m
Icelandair
Deal found 2/7£448
Thu 3/912:20
LGW
-
DCA
1 stop31h 05m
JetBlue
Mon 7/917:00
DCA
-
LGW
1 stop11h 35m
JetBlue
Deal found 3/7£476

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 7 July 2026.

Round-trip from

£439

One-way from

£327

Popular in

July

Cheapest in

November

Average price

£746
Icelandair
  • Icelandair
  • 23/10-31/10
  • 2 total stops
  • 42h 55m total
  • London to Washington, D.C.
Search Deals
20/9
  • 20/9
  • 2 total stops
  • 31h 56m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£84 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 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 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 858,174 searches. Data last updated 7 July 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 return flight

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 9/10

15:40-19:20

1 stop32h 40m

Washington, D.C. Dulles Intl

Wed 14/10

23:20-14:40

1 stop10h 20m

£470

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Fri 11/12

11:55-18:40

1 stop11h 45m

Baltimore/Washington

Mon 4/1

19:40-10:55

1 stop10h 15m

£496

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Wed 23/9

14:00-16:12

2 stops31h 12m

Baltimore/Washington

Mon 28/9

15:20-10:00

1 stop13h 40m

£504
Fastest return journey

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Thu 27/8

15:40-22:15

1 stop11h 35m

Baltimore/Washington

Mon 31/8

20:30-11:45

1 stop10h 15m

£504

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 26/8

12:20-19:05

1 stop11h 45m

Washington, D.C. Reagan-National

Sun 6/9

17:00-09:35

1 stop11h 35m

£531

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Fri 28/8

12:20-21:50

1 stop14h 30m

Washington, D.C. Reagan-National

Mon 7/9

18:25-09:35

1 stop10h 10m

£531

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Sat 29/8

12:20-19:05

1 stop11h 45m

Washington, D.C. Reagan-National

Sun 6/9

17:00-09:35

1 stop11h 35m

£531

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Fri 28/8

12:20-21:50

1 stop14h 30m

Washington, D.C. Reagan-National

Thu 3/9

12:50-09:35

1 stop15h 45m

£531

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Tue 18/8

15:40-19:25

1 stop32h 45m

Baltimore/Washington

Sat 29/8

20:30-11:45

1 stop10h 15m

£537

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 1/9

10:35-23:26

2 stops17h 51m

Washington, D.C. Dulles Intl

Thu 17/9

21:45-16:00

1 stop13h 15m

£545

Flights are sorted by cheapest return flights first.

Deals found on 6/7

Showing 1-10 of 59 resultsSorted by cheapest first
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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 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 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 £142). Flying from London Gatwick Airport to Washington, D.C. in June is currently the most expensive (average of £657). 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 London Gatwick Airport to Washington, D.C.?

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

Reykjavik (KEF) – chosen by Cheapflights users on 59% of one-stop itineraries from London Gatwick Airport to Washington, D.C. on Cheapflights.

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

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

Zurich (ZRH) is the most affordable one-stop option, with an average return flight price of £413.

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

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

Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 10h 35m.

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

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

Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 20m.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated 7 July 2026.
Read reviews from past customers who have flown with Icelandair from London Gatwick Airport to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
702 reviews
Check prices

Entertainment

6.9

Crew

8.0

Comfort

6.9

Overall

7.0

Boarding

7.2

Food

6.2

Reviews

1 / 20
6.0
Good

Sara,Jul 2026

KEF - IAD

It was frustrating to be seated next to two children whose parents were not immediately adjacent to them. The parents were disengaged with their kids and I ended up having to assist/direct children who were not my own.
Icelandair
7.0
Good
702 reviews
Icelandair
7.0
Good
702 reviews
Check prices

Entertainment

6.9

Crew

8.0

Comfort

6.9

Overall

7.0

Boarding

7.2

Food

6.2

Reviews

1 / 20
6.0
Good

Sara,Jul 2026

KEF - IAD

It was frustrating to be seated next to two children whose parents were not immediately adjacent to them. The parents were disengaged with their kids and I ended up having to assist/direct children who were not my own.

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.?

    A quick flight from London Gatwick Airport to Washington, D.C. can take about 11h 45m. Icelandair provides one of the quickest options available for as low as £531. London Gatwick Airport and Washington, D.C. are separated by a distance of 3670 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from London Gatwick Airport to Washington, D.C. round-trip?

    Flying on Icelandair is currently your cheapest option to Washington, D.C., with prices starting at £329. This flight start at 39% lower than the current average price 3 months from now.

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

    Most travelers choose London Gatwick - Washington, D.C. Dulles Intl, London Gatwick - Baltimore/Washington or London Gatwick - Washington, D.C. Reagan-National when deciding on the best route from London Gatwick Airport to Washington, D.C..

  • 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 holiday 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 £142). Flying from London Gatwick Airport to Washington, D.C. in June is currently the most expensive (average of £657). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Alexandria

Browse thousands of different options on Cheapflights for your next trip

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

Discover the top airline that operate flights from Gatwick to Washington, D.C.. 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 July 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£329Average£519FlexibilityNo 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 Gatwick to Washington, D.C.?

Cheapflights makes it easy to find Gatwick to Washington, D.C. 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 Gatwick to Washington, D.C.?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Washington, D.C. from Gatwick.

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

Yes! Cheapflights helps users easily find flights from Gatwick to Washington, D.C. with no change fees.

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

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

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