In terms of precipitation, rainfall in London Gatwick Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Gatwick Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Gatwick Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What is the cheapest time of day to fly from IAD to LGW?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport as you normally would.

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.

£246+ Cheap Flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport

Cheap flight deals from Dulles Intl to Gatwick

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 18 September 2026.

Tue 20/1017:15 -

1 stop10h 05m

Tue 27/1008:50 -

1 stop11h 55m

Deal found 13/9£498

Tue 29/920:20 -

1 stop16h 30m

Tue 6/1009:25 -

1 stop12h 20m

Deal found 14/9£511

Sun 1/1120:50 -

1 stop18h 20m

Wed 4/1108:50 -

1 stop15h 30m

Deal found 14/9£516

Mon 12/1020:30 -

1 stop13h 10m

Wed 21/1015:40 -

1 stop11h 35m

Deal found 14/9£517

Mon 19/1020:30 -

2 stops18h 40m

Fri 23/1009:20 -

2 stops15h 00m

Deal found 13/9£517

Fri 2/1020:55 -

1 stop16h 25m

Tue 6/1008:50 -

1 stop15h 45m

Deal found 14/9£518

Sun 11/1017:00 -

1 stop13h 45m

Tue 20/1006:00 -

1 stop17h 50m

Deal found 14/9£519

Tue 29/920:30 -

1 stop13h 10m

Wed 7/1015:40 -

1 stop11h 35m

Deal found 13/9£520

Fri 16/1009:55 -

2 stops28h 00m

Mon 19/1020:40 -

2 stops23h 45m

Deal found 13/9£521

Fri 9/1017:15 -

1 stop20h 05m

Wed 14/1009:45 -

1 stop14h 40m

Deal found 14/9£522

Tue 29/920:30 -

1 stop13h 10m

Thu 8/1015:40 -

1 stop32h 40m

Deal found 13/9£523

Tue 15/1219:40 -

1 stop15h 00m

Tue 22/1208:00 -

1 stop15h 30m

Deal found 14/9£524

Find flight deals from Dulles Intl to Gatwick

Round-trip from	£498
One-way from	£246
Popular in	June
Cheapest in	February
Average price	£1,069

20/10-27/10
2 total stops
22h 00m total
Washington, D.C. to London

Search Deals

20/10-31/12
1 total stop
17h 48m total
Washington, D.C. to London

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£117 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease (£37 potential savings vs. average return 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 return flight

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Tue 19/1

18:40-15:45

1 stop16h 05m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£247

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Sun 17/1

18:30-15:45

2 stops16h 15m

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

Wed 13/1

18:30-15:45

2 stops16h 15m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Tue 1/12

17:25-16:55

2 stops18h 30m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£266

Fastest return journey

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Mon 14/12

21:30-15:45

1 stop13h 15m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£269

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Sun 29/11

16:30-14:40

2 stops17h 10m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£274

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Sat 16/1

18:40-15:45

1 stop16h 05m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£284

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Thu 14/1

18:30-15:45

2 stops16h 15m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£287

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Fri 27/11

22:30-08:20

2 stops28h 50m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£357

Washington, D.C.London

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

IADLGW

Washington, D.C. Dulles Intl

Fri 5/3

22:30-20:40

2 stops41h 10m

London Gatwick

Wed 31/12

00:00-18:00

Nonstop0h 00m

£357

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 24 resultsSorted by cheapest first

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.

IAD-LGW

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 £319). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of £1,121). 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 £319). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of £1,121). 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.

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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?

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Cheap flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport from £246

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dulles Intl to Gatwick

Cheapest flights from Dulles Intl to GatwickExplore 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 18 September 2026.

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 18 September 2026.

Best flights from Dulles Intl to GatwickDiscover carefully curated flight deals from Dulles Intl to Gatwick that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Discover carefully curated flight deals from Dulles Intl to Gatwick that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from Dulles Intl to GatwickDiscover last-minute flight deals from Dulles Intl to Gatwick. Data last updated 18 September 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to Gatwick. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Dulles Intl to GatwickSearch for one-way flight options from Dulles Intl to Gatwick. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

Search for one-way flight options from Dulles Intl to Gatwick. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

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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.

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.

Cheapflights Insights

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport?

Related info for your journey

How long is the flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport?

Can I find deals for flights from Dulles Intl to Gatwick that include hotel bookings?

How can I find direct flights from Dulles Intl to Gatwick?

Can I find deals for business class flights from Dulles Intl to Gatwick?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport?

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Alternative routes for Dulles Intl to Gatwick

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Complete your trip

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Other flights to Gatwick

Explore flights to Gatwick departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.

Dulles Intl and Gatwick flights

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Can Cheapflights notify me if prices for flights from Dulles Intl to Gatwick become cheaper?

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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 18 September 2026.

Best flights from Dulles Intl to Gatwick
Discover carefully curated flight deals from Dulles Intl to Gatwick that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from Dulles Intl to Gatwick
Discover last-minute flight deals from Dulles Intl to Gatwick. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Dulles Intl to Gatwick
Search for one-way flight options from Dulles Intl to Gatwick. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.