Cheap flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport from £214

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LGW
6 Sep — 13 Sep1
1 adult

Cheap 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 1 September 2025.

Round-trip from

£363

One-way from

£214

Popular in

December

Cheapest in

November

Average price

£465
Icelandair
  • Icelandair
  • 3/10-11/10
  • 2 total stops
  • 21h 55m total
  • Washington, D.C. to London
27/9
  • 27/9
  • 3 total stops
  • 18h 05m total
  • Washington, D.C. to London
High demand for flights, 2% potential price rise
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Dulles Intl to Gatwick

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 1 September 2025.

Fri 3/1023:15IAD - LGW
1 stop10h 25mIcelandair
Sat 11/1015:40LGW - IAD
1 stop11h 30mIcelandair
Deal found 31/8£363
Wed 12/1119:40IAD - LGW
1 stop10h 15mIcelandair
Tue 18/1111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 30/8£364
Wed 8/1023:15IAD - LGW
1 stop10h 25mIcelandair
Wed 15/1015:40LGW - IAD
1 stop11h 30mIcelandair
Deal found 30/8£365
Mon 13/1020:30IAD - LGW
1 stop13h 05mIcelandair
Tue 2/1211:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 29/8£366
Tue 14/1020:30IAD - LGW
1 stop13h 10mIcelandair
Tue 21/1015:40LGW - IAD
1 stop32h 40mIcelandair
Deal found 30/8£367
Tue 7/1020:30IAD - LGW
1 stop13h 10mIcelandair
Tue 21/1015:40LGW - IAD
1 stop32h 40mIcelandair
Deal found 30/8£368
Sun 30/1119:40IAD - LGW
1 stop10h 15mIcelandair
Sun 7/1211:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 1/9£373
Wed 26/1119:40IAD - LGW
2 stops22h 50mMultiple Airlines
Sat 6/1221:05LGW - IAD
2 stops26h 25mMultiple Airlines
Deal found 31/8£377
Wed 29/1020:40IAD - LGW
1 stop10h 15mIcelandair
Wed 12/1111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 1/9£383
Tue 11/1119:40IAD - LGW
1 stop10h 15mIcelandair
Tue 25/1111:55LGW - IAD
1 stop11h 35mIcelandair
Deal found 31/8£384

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 1 September 2025.
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

Fri 28/11

19:40-10:55

1 stop10h 15m

London Gatwick

Tue 2/12

11:55-18:30

1 stop11h 35m

£363

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 6/2

19:40-10:55

1 stop10h 15m

London Gatwick

Mon 9/2

11:55-18:30

1 stop11h 35m

£363

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 14/11

19:40-10:55

1 stop10h 15m

London Gatwick

Tue 18/11

11:55-18:30

1 stop11h 35m

£363

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 12/1

19:40-10:55

1 stop10h 15m

London Gatwick

Sun 25/1

11:55-18:30

1 stop11h 35m

£364

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 12/11

19:40-10:55

1 stop10h 15m

London Gatwick

Tue 18/11

11:55-18:30

1 stop11h 35m

£364

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 3/10

23:15-14:40

1 stop10h 25m

London Gatwick

Sat 11/10

15:40-22:10

1 stop11h 30m

£365

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sat 29/11

19:40-10:55

1 stop10h 15m

London Gatwick

Sun 7/12

11:55-18:30

1 stop11h 35m

£365

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 14/11

19:40-10:55

1 stop10h 15m

London Gatwick

Fri 21/11

11:55-18:30

1 stop11h 35m

£365

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 10/11

19:40-10:55

1 stop10h 15m

London Gatwick

Fri 21/11

11:55-18:30

1 stop11h 35m

£365

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sat 28/2

19:40-10:55

1 stop10h 15m

London Gatwick

Sat 7/3

11:55-18:30

1 stop11h 35m

£365

Flights are sorted by cheapest return flights first.

Deals found on 30/8

Showing 1-10 of 23 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, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of £102). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in July is currently the most expensive (average of £142). 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 15m. Airlines will cover a distance of 3683 mi.

  • 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, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of £102). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in July is currently the most expensive (average of £142). 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
Croydon
Hounslow
Gatwick
Slough
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Ipswich
Watford
Folkestone
Chichester
Winchester
Dartford
Eastbourne
Guildford
Bishop's Stortford

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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?

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