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Cheap flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport from £263

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LGW
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dulles Intl to Gatwick

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Gatwick
Explore the most affordable flight options available from Dulles Intl to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Fri 1/520:30
IAD
-
LGW
1 stop10h 15m
Icelandair
Sat 9/513:00
LGW
-
IAD
1 stop11h 20m
Icelandair
Deal found 20/1£389
Fri 1/520:30
IAD
-
LGW
1 stop10h 15m
Icelandair
Tue 12/513:00
LGW
-
IAD
1 stop11h 20m
Icelandair
Deal found 22/1£389
Mon 4/520:30
IAD
-
LGW
1 stop10h 15m
Icelandair
Mon 11/515:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Deal found 22/1£390
Tue 17/318:30
IAD
-
LGW
1 stop11h 20m
TAP AIR PORTUGAL
Tue 24/321:20
LGW
-
IAD
2 stops28h 40m
TAP AIR PORTUGAL
Deal found 21/1£391
Tue 14/417:05
IAD
-
LGW
1 stop11h 40m
TAP AIR PORTUGAL
Mon 20/412:05
LGW
-
IAD
2 stops32h 00m
TAP AIR PORTUGAL
Deal found 20/1£392
Sat 2/520:30
IAD
-
LGW
1 stop10h 15m
Icelandair
Fri 8/515:40
LGW
-
IAD
1 stop11h 35m
Icelandair
Deal found 20/1£392
Fri 8/520:30
IAD
-
LGW
1 stop10h 15m
Icelandair
Sat 16/515:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Deal found 20/1£393
Thu 5/217:30
IAD
-
LGW
2 stops22h 10m
TAP AIR PORTUGAL
Sun 8/210:40
LGW
-
IAD
1 stop15h 20m
TAP AIR PORTUGAL
Deal found 21/1£394
Mon 26/113:31
IAD
-
LGW
1 stop15h 29m
Multiple Airlines
Thu 29/114:00
LGW
-
IAD
1 stop23h 40m
Multiple Airlines
Deal found 20/1£395
Wed 25/222:30
IAD
-
LGW
1 stop11h 35m
TAP AIR PORTUGAL
Fri 6/321:25
LGW
-
IAD
2 stops22h 50m
TAP AIR PORTUGAL
Deal found 21/1£395
Wed 11/323:30
IAD
-
LGW
1 stop11h 35m
TAP AIR PORTUGAL
Mon 16/316:35
LGW
-
IAD
1 stop27h 00m
TAP AIR PORTUGAL
Deal found 21/1£396
Tue 14/420:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Thu 30/413:00
LGW
-
IAD
1 stop11h 20m
Icelandair
Deal found 21/1£398

Find flight deals from Dulles Intl to Gatwick

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 22 January 2026.

Round-trip from

£389

One-way from

£263

Popular in

June

Cheapest in

November

Average price

£383
Icelandair
  • Icelandair
  • 1/5-9/5
  • 2 total stops
  • 21h 35m total
  • Washington, D.C. to London
Search Deals
Icelandair
  • Icelandair
  • 12/5
  • 1 total stop
  • 13h 10m total
  • Washington, D.C. to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£118 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dulles Intl 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 22 January 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport that are best for you.

Fly from

Dulles Intl

Fly to

Gatwick

Route

Depart

Return

Price

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 13/4

22:35-15:35

1 stop12h 00m

London Gatwick

Sun 19/4

21:15-20:35

2 stops28h 20m

£407

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 17/5

23:20-14:40

1 stop10h 20m

London Gatwick

Fri 29/5

15:40-22:15

1 stop11h 35m

£426

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sat 18/4

18:15-09:20

1 stop10h 05m

London Gatwick

Thu 30/4

10:40-19:35

1 stop13h 55m

£513

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 25/3

18:05-07:55

2 stops33h 50m

London Gatwick

Tue 31/3

10:15-15:45

2 stops34h 30m

£523

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sat 7/2

17:30-09:50

1 stop11h 20m

London Gatwick

Fri 27/2

10:45-21:00

2 stops15h 15m

£527

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 13/4

22:35-15:35

1 stop12h 00m

London Gatwick

Mon 11/5

10:35-20:35

1 stop15h 00m

£550

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 31/5

20:30-14:40

1 stop13h 10m

London Gatwick

Sat 6/6

15:40-19:20

1 stop32h 40m

£565

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 16/2

17:30-09:50

1 stop11h 20m

London Gatwick

Wed 18/2

10:40-21:00

1 stop15h 20m

£609

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 3/2

17:30-09:50

1 stop11h 20m

London Gatwick

Tue 10/2

10:40-07:20

3 stops25h 40m

£621

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 13/3

23:30-15:45

1 stop12h 15m

London Gatwick

Sun 22/3

21:25-16:15

2 stops22h 50m

£621

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 22 results
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Best time to book a flight from Dulles Intl to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Dulles Intl 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. Dulles Intl Airport to London Gatwick Airport

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of £250). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of £733). 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.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl Airport to London Gatwick Airport?

    Departing from Washington, D.C. Dulles Intl Airport to London Gatwick Airport will take you 10h 05m. Airlines will cover a distance of 3683 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Dulles Intl to Gatwick that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Gatwick flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Gatwick?

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

  • Can I find deals for business class flights from Dulles Intl to Gatwick?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to London Gatwick Airport?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of £250). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of £733). 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
Milton Keynes
Luton
Croydon
Wembley
Gatwick
Slough
Hounslow
Ilford
Brentford
Hayes
Colchester
Watford
Crawley
Bedford
Kingston upon Thames
Chelmsford
Eastbourne
Romford
Folkestone
Southend-on-Sea

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How does Cheapflights help users find flights from Dulles Intl to Gatwick?

When you search for this flight from Dulles Intl to Gatwick, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Gatwick?

Cheapflights helps you find that perfect flight to Gatwick from Dulles Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Dulles Intl to Gatwick with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Dulles Intl to Gatwick, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Dulles Intl to Gatwick become cheaper?

Yes! Start tracking prices for Dulles Intl to Gatwick flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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