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Cheap flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport from £230

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LGW
22 Jul — 29 Jul1
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 June 2026.

Sun 26/720:30
IAD
-
LGW
2 stops18h 30m
Multiple Airlines
Thu 6/808:00
LGW
-
IAD
2 stops16h 10m
Multiple Airlines
Deal found 21/6£638
Fri 28/823:20
IAD
-
LGW
1 stop10h 20m
Icelandair
Tue 1/913:00
LGW
-
IAD
1 stop11h 20m
Icelandair
Deal found 20/6£638
Tue 29/917:05
IAD
-
LGW
1 stop11h 40m
TAP AIR PORTUGAL
Mon 5/1021:15
LGW
-
IAD
2 stops28h 20m
TAP AIR PORTUGAL
Deal found 22/6£639
Wed 2/922:35
IAD
-
LGW
2 stops16h 55m
TAP AIR PORTUGAL
Wed 9/910:35
LGW
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 21/6£640
Sat 29/820:30
IAD
-
LGW
1 stop10h 15m
Multiple Airlines
Mon 7/920:40
LGW
-
IAD
1 stop27h 10m
Multiple Airlines
Deal found 19/6£641
Fri 11/917:05
IAD
-
LGW
2 stops13h 15m
TAP AIR PORTUGAL
Thu 17/910:35
LGW
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 21/6£641
Sun 26/720:30
IAD
-
LGW
2 stops19h 25m
Multiple Airlines
Wed 29/708:15
LGW
-
IAD
2 stops18h 11m
Multiple Airlines
Deal found 19/6£642
Thu 20/822:35
IAD
-
LGW
1 stop30h 10m
TAP AIR PORTUGAL
Thu 27/821:20
LGW
-
IAD
2 stops22h 50m
TAP AIR PORTUGAL
Deal found 22/6£643
Sun 23/817:40
IAD
-
LGW
2 stops21h 45m
TAP AIR PORTUGAL
Tue 1/916:25
LGW
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 22/6£644
Sun 16/817:40
IAD
-
LGW
1 stop16h 30m
TAP AIR PORTUGAL
Sat 19/910:35
LGW
-
IAD
1 stop14h 30m
TAP AIR PORTUGAL
Deal found 21/6£645
Wed 19/817:45
IAD
-
LGW
2 stops21h 45m
TAP AIR PORTUGAL
Mon 7/916:25
LGW
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 19/6£645
Mon 20/722:35
IAD
-
LGW
2 stops16h 50m
TAP AIR PORTUGAL
Thu 27/814:50
LGW
-
IAD
1 stop34h 45m
TAP AIR PORTUGAL
Deal found 19/6£646

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 June 2026.

Round-trip from

£638

One-way from

£230

Popular in

June

Cheapest in

February

Average price

£977
26/7-6/8
  • 26/7-6/8
  • 4 total stops
  • 34h 40m total
  • Washington, D.C. to London
Search Deals
1/11
  • 1/11
  • 2 total stops
  • 16h 15m total
  • Washington, D.C. to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£124 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£31 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 June 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

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 16/9

21:45-22:30

1 stop19h 45m

London Gatwick

Wed 30/9

07:05-19:50

1 stop17h 45m

£650

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 10/8

17:47-16:00

2 stops17h 13m

London Gatwick

Wed 19/8

10:25-19:35

1 stop14h 10m

£653

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 10/8

17:47-16:00

2 stops17h 13m

London Gatwick

Thu 20/8

10:25-19:35

1 stop14h 10m

£655

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 16/8

22:35-09:45

1 stop30h 10m

London Gatwick

Mon 19/10

16:25-15:10

1 stop27h 45m

£673

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 17/9

22:35-11:20

2 stops31h 45m

London Gatwick

Tue 22/9

10:35-20:35

1 stop15h 00m

£682
Fastest return journey

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 4/8

18:15-16:00

1 stop16h 45m

London Gatwick

Thu 13/8

10:25-19:35

1 stop14h 10m

£690

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 5/8

21:45-16:00

1 stop13h 15m

London Gatwick

Wed 12/8

17:00-11:49

2 stops23h 49m

£696

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 24/9

22:35-11:20

2 stops31h 45m

London Gatwick

Wed 7/10

10:35-20:35

1 stop15h 00m

£716

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 10/9

22:35-20:25

2 stops16h 50m

London Gatwick

Mon 14/9

16:25-15:10

1 stop27h 45m

£729

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 3/9

22:35-20:25

2 stops16h 50m

London Gatwick

Mon 7/9

16:25-15:10

1 stop27h 45m

£738

Flights are sorted by cheapest return flights first.

Deals found on 18/6

Showing 1-10 of 22 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of £322). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of £977). 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 for a return flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport?

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 17h 13m. 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of £322). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of £977). 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
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Croydon
Slough
Ilford
Hayes
Brentford
Colchester
Kingston upon Thames
Eastbourne
Watford
Guildford
Romford
Ipswich
Borehamwood
Folkestone
Southall

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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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