Find flights
When to book
FAQs

Cheap flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport from £238

IAD — LGW
5 Dec — 12 Dec1
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

Sun 6/1222:30 -
1 stop12h 15m
Sun 13/1210:40 -
1 stop14h 55m
Deal found 31/10£500
Tue 24/1119:40 -
2 stops14h 40m
Tue 1/1208:50 -
2 stops14h 40m
Deal found 3/11£502
Sat 5/1217:25 -
1 stop11h 25m
Sat 12/1216:35 -
1 stop33h 00m
Deal found 2/11£503
Mon 16/1117:25 -
2 stops15h 45m
Wed 25/1109:50 -
1 stop15h 50m
Deal found 3/11£504
Tue 17/1119:40 -
1 stop10h 15m
Wed 25/1109:50 -
1 stop15h 50m
Deal found 3/11£506
Thu 5/1119:40 -
1 stop10h 15m
Fri 13/1111:55 -
1 stop11h 35m
Deal found 3/11£507
Tue 1/1219:40 -
2 stops19h 00m
Tue 8/1208:00 -
2 stops15h 30m
Deal found 3/11£508
Sat 21/1121:35 -
1 stop27h 15m
Wed 25/1109:50 -
1 stop15h 50m
Deal found 1/11£509
Sun 29/1119:40 -
1 stop14h 30m
Tue 8/1208:00 -
1 stop15h 30m
Deal found 1/11£510
Mon 7/1219:40 -
2 stops16h 00m
Tue 15/1208:00 -
2 stops15h 30m
Deal found 3/11£512

Find flight deals from Dulles Intl to Gatwick

Round-trip from

£499

One-way from

£238

Popular in

June

Cheapest in

February

Average price

£375
10/1-17/1
  • 10/1-17/1
  • 2 total stops
  • 31h 00m total
  • Washington, D.C. to London
Search Deals
30/11-31/12
  • 30/11-31/12
  • 1 total stop
  • 34h 35m total
  • Washington, D.C. to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£100 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£35 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Fare Finder

 
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 Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Mon 16/11

17:25-19:15

1 stop20h 50m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£249

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Mon 14/12

22:35-10:55

3 stops31h 20m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£316

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Wed 25/11

22:30-09:50

1 stop30h 20m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£333

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Sun 29/11

22:30-09:50

1 stop30h 20m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£333

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Wed 13/1

22:30-10:00

2 stops30h 30m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£338
Fastest return journey

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Sun 13/12

22:30-15:45

1 stop12h 15m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£395

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Sat 7/11

21:30-15:45

1 stop13h 15m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£407

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Fri 11/12

22:30-08:20

2 stops28h 50m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£419

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Mon 14/12

17:25-20:35

2 stops22h 10m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£511

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Sun 6/12

22:30-15:45

1 stop12h 15m

London Gatwick

Sat 12/12

16:35-20:35

1 stop33h 00m

£559

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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

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 £316). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of £1,113). 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

  • 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 12h 15m. 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 £316). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of £1,113). 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
Luton
Milton Keynes
Wembley
Gatwick
Slough
Ilford
Hayes
Croydon
Eastbourne
Barnet
Brentford
Southend-on-Sea
Enfield
Southall
Harrow
Watford
Folkestone
Dagenham
Dover

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.