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Cheap flights from London Gatwick Airport to Washington, D.C. from £220

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — WAS
22 Jan — 29 Jan1
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 23 December 2025.

Wed 24/1216:35LGW - IAD
1 stop27h 40mTAP AIR PORTUGAL
Sun 25/122:30IAD - LGW
1 stop12h 15mTAP AIR PORTUGAL
Deal found 21/12£564
Mon 22/1219:40LGW - IAD
1 stop25h 50mIberia
Thu 8/118:00IAD - LGW
1 stop20h 00mIberia
Deal found 22/12£590
Wed 24/1216:35LGW - IAD
1 stop27h 40mTAP AIR PORTUGAL
Mon 12/117:30IAD - LGW
1 stop17h 15mTAP AIR PORTUGAL
Deal found 21/12£618
Wed 31/1211:55LGW - IAD
1 stop11h 35mIcelandair
Thu 15/119:40IAD - LGW
1 stop10h 15mIcelandair
Deal found 22/12£661
Wed 24/1216:35LGW - IAD
1 stop27h 40mTAP AIR PORTUGAL
Sat 10/117:38IAD - LGW
2 stops22h 02mTAP AIR PORTUGAL
Deal found 21/12£665
Wed 31/1211:55LGW - IAD
1 stop11h 35mIcelandair
Fri 16/119:40IAD - LGW
1 stop10h 15mIcelandair
Deal found 22/12£681
Wed 24/1216:35LGW - IAD
1 stop27h 40mTAP AIR PORTUGAL
Thu 8/117:30IAD - LGW
1 stop11h 20mTAP AIR PORTUGAL
Deal found 22/12£686
Wed 24/1216:35LGW - IAD
1 stop27h 40mTAP AIR PORTUGAL
Tue 30/1217:30IAD - LGW
2 stops34h 55mTAP AIR PORTUGAL
Deal found 22/12£719
Wed 24/1216:35LGW - IAD
1 stop27h 40mTAP AIR PORTUGAL
Wed 31/1222:30IAD - LGW
1 stop30h 20mTAP AIR PORTUGAL
Deal found 22/12£721
Tue 23/1211:55LGW - BWI
1 stop11h 45mMultiple Airlines
Thu 8/119:40BWI - LGW
2 stops18h 10mMultiple Airlines
Deal found 22/12£830
Wed 24/1211:55LGW - DCA
2 stops27h 40mMultiple Airlines
Sat 10/115:25DCA - LGW
2 stops14h 30mMultiple Airlines
Deal found 21/12£836
Fri 26/1211:55LGW - BWI
1 stop11h 45mIcelandair
Sat 10/119:40BWI - LGW
1 stop10h 15mIcelandair
Deal found 21/12£838

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 23 December 2025.

Round-trip from

£452

One-way from

£220

Popular in

August

Cheapest in

April

Average price

£611
British Airways
  • British Airways
  • 12/5-19/5
  • 2 total stops
  • 31h 50m total
  • London to Washington, D.C.
Search Deals
23/1
  • 23/1
  • 1 total stop
  • 13h 41m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 23 December 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Washington, D.C. that are best for you.

Fly from

Gatwick

Fly to

Washington, D.C.

Route

Depart

Return

Price

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 20/1

11:55-18:30

1 stop11h 35m

Washington, D.C. Dulles Intl

Tue 27/1

19:40-10:55

1 stop10h 15m

£463

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 5/2

11:55-18:30

1 stop11h 35m

Washington, D.C. Dulles Intl

Wed 11/2

19:40-10:55

1 stop10h 15m

£465

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Fri 27/2

11:20-20:59

1 stop14h 39m

Washington, D.C. Reagan-National

Sat 7/3

11:15-07:30

1 stop15h 15m

£465

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Thu 15/1

14:00-13:09

1 stop28h 09m

Baltimore/Washington

Thu 22/1

11:24-10:00

2 stops17h 36m

£468

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 19/5

09:25-16:45

1 stop12h 20m

Washington, D.C. Dulles Intl

Wed 27/5

20:20-17:50

1 stop16h 30m

£471

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 20/5

09:25-16:45

1 stop12h 20m

Washington, D.C. Dulles Intl

Wed 27/5

20:20-17:50

1 stop16h 30m

£471

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Fri 30/1

14:00-22:41

1 stop13h 41m

Baltimore/Washington

Sat 21/3

20:40-14:15

2 stops13h 35m

£471

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Thu 26/2

14:00-23:17

1 stop14h 17m

Baltimore/Washington

Tue 10/3

20:40-16:55

2 stops16h 15m

£474

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

Fri 27/2

14:00-08:54

1 stop23h 54m

Baltimore/Washington

Wed 11/3

20:40-14:30

2 stops13h 50m

£476

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 27/2

10:45-21:00

2 stops15h 15m

Washington, D.C. Dulles Intl

Tue 3/3

17:30-15:45

1 stop17h 15m

£478

Flights are sorted by cheapest return flights first.

Deals found on 21/12

Showing 1-10 of 56 results
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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, February is the cheapest month in which you can book a flight from London Gatwick Airport to Washington, D.C. (average of £316). Flying from London Gatwick Airport to Washington, D.C. in August is currently the most expensive (average of £573). 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 is the cheapest time of day to fly from LGW to WAS?

Find hourly flight availability from Gatwick to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 December 2025.

One of the essential ways to save on airfare from London Gatwick Airport to Washington, D.C. is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 42% on airfare.

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 66% 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.

Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £352.

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 New York (JFK) have the shortest average one-way travel time for one-stop routes: 11h 28m.

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 New York (JFK) offer the fastest connection on this route, with an average stopover time of 1h 11m.

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 23 December 2025.
Read reviews from past customers who have flown with Icelandair and British Airways 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
592 reviews
Check prices

Comfort

6.9

Crew

8.0

Overall

7.0

Entertainment

7.0

Food

6.2

Boarding

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.
Icelandair
7.0
Good
592 reviews
Icelandair
7.0
Good
592 reviews
Check prices

Comfort

6.9

Crew

8.0

Overall

7.0

Entertainment

7.0

Food

6.2

Boarding

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.
British Airways
6.7
Okay
7,607 reviews
Icelandair
7.0
Good
592 reviews
Check prices

Comfort

6.9

Crew

8.0

Overall

7.0

Entertainment

7.0

Food

6.2

Boarding

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.

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 35m. Icelandair provides one of the quickest options available for as low as £463. London Gatwick Airport and Washington, D.C. are separated by a distance of 3683 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 £387. This flight start at 31% 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, February is the cheapest month in which you can book a flight from London Gatwick Airport to Washington, D.C. (average of £316). Flying from London Gatwick Airport to Washington, D.C. in August is currently the most expensive (average of £573). 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
Hanover
Oxon Hill
Woodbridge
Arlington
Alexandria
College Park

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 23 December 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£345Average£563FlexibilityNo 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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