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Cheap flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport from C$ 458

IAD — LGW
13 Oct — 20 Oct1
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

Sat 5/125:50 p.m. -
2 stops20h 00m
Mon 14/127:55 p.m. -
2 stops25h 25m
Deal found 10/9C$ 952
Mon 5/1011:12 a.m. -
1 stop17h 48m
Fri 9/102:00 p.m. -
1 stop25h 17m
Deal found 9/9C$ 953
Sun 18/1011:20 p.m. -
1 stop10h 20m
Wed 28/1011:55 a.m. -
1 stop11h 35m
Deal found 8/9C$ 958
Tue 27/1011:16 a.m. -
1 stop15h 34m
Tue 3/119:35 a.m. -
1 stop29h 46m
Deal found 9/9C$ 967
Tue 29/98:30 p.m. -
1 stop13h 10m
Wed 7/103:40 p.m. -
1 stop11h 35m
Deal found 11/9C$ 970
Thu 26/115:50 p.m. -
2 stops16h 55m
Wed 2/123:25 p.m. -
2 stops29h 55m
Deal found 10/9C$ 990
Thu 15/108:35 p.m. -
2 stops21h 35m
Mon 19/108:10 p.m. -
2 stops27h 40m
Deal found 9/9C$ 995
Thu 15/108:35 p.m. -
2 stops21h 35m
Wed 21/105:25 p.m. -
2 stops30h 30m
Deal found 12/9C$ 997
Sun 11/1011:12 a.m. -
1 stop17h 48m
Tue 27/1010:10 a.m. -
1 stop28h 11m
Deal found 9/9C$ 1,004
Tue 6/108:25 p.m. -
2 stops31h 05m
Mon 12/109:05 p.m. -
2 stops26h 45m
Deal found 9/9C$ 1,006
Wed 30/95:00 p.m. -
2 stops19h 55m
Mon 5/108:10 p.m. -
2 stops27h 40m
Deal found 9/9C$ 1,008

Find flight deals from Dulles Intl to Gatwick

Round-trip from

C$ 950

One-way from

C$ 458

Popular in

June

Cheapest in

February

Average price

C$ 1,982
11/2-15/2
  • 11/2-15/2
  • 4 total stops
  • 45h 50m total
  • Washington, D.C. to London
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Delta
  • Delta
  • 10/2-31/12
  • 1 total stop
  • 16h 05m total
  • Washington, D.C. to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (C$ 403 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease (C$ 124 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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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 round-trip

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Tue 8/12

8:07 a.m.-9:00 a.m.

2 stops19h 53m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 463

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Fri 9/10

11:12 a.m.-10:00 a.m.

1 stop17h 48m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 524
Quickest round-trip

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Sat 12/12

6:20 p.m.-3:45 p.m.

2 stops16h 25m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 533

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Wed 6/1

6:00 a.m.-5:50 p.m.

2 stops30h 50m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 621

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Tue 20/10

5:05 p.m.-8:25 p.m.

2 stops22h 20m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 634

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Wed 28/10

8:13 a.m.-9:00 a.m.

2 stops20h 47m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 649

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Sun 25/10

6:10 a.m.-5:50 p.m.

2 stops31h 40m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 655

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Sat 6/3

5:25 p.m.-10:05 a.m.

2 stops35h 40m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 662

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Sun 20/9

5:40 p.m.-3:10 p.m.

1 stop16h 30m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 664

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Wed 7/10

7:23 a.m.-9:25 a.m.

2 stops21h 02m

London Gatwick

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 691

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 23 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 round-trip 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 C$ 591). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of C$ 2,079). 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?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in 13h 15m. Fly via Virgin Atlantic to get the fastest option. The distance from Washington, D.C. Dulles Intl Airport to London Gatwick Airport is about 5927 km.

  • 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 vacation 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 C$ 591). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of C$ 2,079). 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
Gatwick
Romford
Twickenham
Ilford
Bromley
Sutton
Luton
Slough
Marlow
Cobham
Hounslow
Watford
High Wycombe

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Gatwick

Dulles Intl to Heathrow flights

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