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Cheap flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport from £314

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LGW
12 Jun — 19 Jun1
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 13 May 2026.

Fri 15/517:05
IAD
-
LGW
1 stop11h 40m
TAP AIR PORTUGAL
Mon 18/510:35
LGW
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 10/5£593
Thu 27/820:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Sun 27/915:40
LGW
-
IAD
1 stop11h 35m
Icelandair
Deal found 11/5£593
Mon 8/615:45
IAD
-
LGW
3 stops35h 10m
Multiple Airlines
Mon 22/611:35
LGW
-
IAD
2 stops32h 41m
Multiple Airlines
Deal found 9/5£594
Thu 27/820:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Sat 5/915:40
LGW
-
IAD
1 stop11h 35m
Icelandair
Deal found 10/5£595
Fri 28/820:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Wed 2/915:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Deal found 10/5£596
Tue 29/917:05
IAD
-
LGW
1 stop11h 40m
TAP AIR PORTUGAL
Tue 6/1021:15
LGW
-
IAD
2 stops28h 20m
TAP AIR PORTUGAL
Deal found 10/5£596
Sun 27/922:35
IAD
-
LGW
1 stop30h 10m
TAP AIR PORTUGAL
Thu 8/1014:50
LGW
-
IAD
1 stop28h 35m
TAP AIR PORTUGAL
Deal found 11/5£597
Tue 2/611:30
IAD
-
LGW
2 stops15h 25m
Multiple Airlines
Sun 7/609:40
LGW
-
IAD
2 stops35h 32m
Multiple Airlines
Deal found 10/5£598
Tue 28/713:36
IAD
-
LGW
1 stop15h 24m
Multiple Airlines
Thu 20/813:30
LGW
-
IAD
2 stops30h 40m
Multiple Airlines
Deal found 10/5£599
Mon 1/615:45
IAD
-
LGW
3 stops35h 10m
Multiple Airlines
Sun 7/609:40
LGW
-
IAD
2 stops35h 32m
Multiple Airlines
Deal found 9/5£599
Tue 9/611:30
IAD
-
LGW
2 stops17h 20m
Multiple Airlines
Tue 16/609:40
LGW
-
IAD
3 stops34h 23m
Multiple Airlines
Deal found 10/5£600

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 13 May 2026.

Round-trip from

£593

One-way from

£314

Popular in

June

Cheapest in

February

Average price

£580
Icelandair
  • Icelandair
  • 27/8-27/9
  • 2 total stops
  • 24h 45m total
  • Washington, D.C. to London
Search Deals
2/9
  • 2/9
  • 2 total stops
  • 17h 45m total
  • Washington, D.C. to London
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£139 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (£38 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 13 May 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 30/9

06:15-09:25

2 stops22h 10m

London Gatwick

Tue 6/10

10:35-19:35

1 stop14h 00m

£642

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 21/7

18:15-16:00

1 stop16h 45m

London Gatwick

Wed 5/8

10:25-19:35

1 stop14h 10m

£738

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 4/6

20:30-14:40

1 stop13h 10m

London Gatwick

Mon 15/6

15:40-19:20

1 stop32h 40m

£816

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 30/6

13:38-10:00

1 stop15h 22m

London Gatwick

Sat 4/7

14:00-12:51

1 stop27h 51m

£837
Fastest return journey

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 8/7

18:15-09:25

1 stop10h 10m

London Gatwick

Wed 22/7

10:25-23:20

2 stops17h 55m

£844

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 9/7

20:20-17:50

1 stop16h 30m

London Gatwick

Tue 14/7

09:25-16:45

1 stop12h 20m

£846

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 28/5

20:30-14:40

1 stop13h 10m

London Gatwick

Sun 31/5

15:40-19:20

1 stop32h 40m

£903

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 4/8

19:20-16:25

2 stops16h 05m

London Gatwick

Tue 11/8

10:00-11:49

2 stops30h 49m

£925

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 5/6

15:08-16:00

2 stops19h 52m

London Gatwick

Fri 12/6

17:00-11:48

2 stops23h 48m

£1,040

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 21/6

18:15-16:00

1 stop16h 45m

London Gatwick

Tue 28/7

17:00-11:49

2 stops23h 49m

£1,081

Flights are sorted by cheapest return flights first.

Deals found on 10/5

Showing 1-10 of 21 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 £314). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of £1,063). 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 22h. 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, 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 £314). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of £1,063). 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
Hounslow
Croydon
Wembley
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Southall
Chelmsford

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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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