Cheap flights from Washington, D.C. to London Gatwick Airport from £125
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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Washington, D.C. to Gatwick
Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 12 September 2025.
Round-trip from | £362 |
---|---|
One-way from | £125 |
Popular in | February |
Cheapest in | January |
Average price | £442 |
Find flight deals from Washington, D.C. to Gatwick
Cheapest flights from Washington, D.C. to GatwickExplore the most affordable flight options available from Washington, D.C. to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.
Explore the most affordable flight options available from Washington, D.C. to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Washington, D.C. to London Gatwick Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.London
IAD - LGW
IADLGW
Washington, D.C. Dulles Intl
Mon 1/12
19:40-10:55
1 stop10h 15m
London Gatwick
Sat 13/12
11:55-18:30
1 stop11h 35m
Washington, D.C.London
IAD - LGW
IADLGW
Washington, D.C. Dulles Intl
Sun 30/11
19:40-10:55
1 stop10h 15m
London Gatwick
Sat 13/12
11:55-18:30
1 stop11h 35m
Washington, D.C.London
IAD - LGW
IADLGW
Washington, D.C. Dulles Intl
Mon 17/11
19:40-10:55
1 stop10h 15m
London Gatwick
Fri 21/11
11:55-18:30
1 stop11h 35m
Washington, D.C.London
IAD - LGW
IADLGW
Washington, D.C. Dulles Intl
Tue 18/11
19:40-10:55
1 stop10h 15m
London Gatwick
Tue 25/11
11:55-18:30
1 stop11h 35m
Washington, D.C.London
IAD - LGW
IADLGW
Washington, D.C. Dulles Intl
Mon 8/12
19:40-10:55
1 stop10h 15m
London Gatwick
Fri 23/1
11:55-18:30
1 stop11h 35m
Washington, D.C.London
IAD - LGW
IADLGW
Washington, D.C. Dulles Intl
Sun 7/12
19:40-10:55
1 stop10h 15m
London Gatwick
Fri 23/1
11:55-18:30
1 stop11h 35m
Washington, D.C.London
IAD - LGW
IADLGW
Washington, D.C. Dulles Intl
Sun 16/11
19:40-10:55
1 stop10h 15m
London Gatwick
Fri 21/11
11:55-18:30
1 stop11h 35m
Washington, D.C.London
IAD - LGW
IADLGW
Washington, D.C. Dulles Intl
Thu 4/12
19:40-10:55
1 stop10h 15m
London Gatwick
Fri 23/1
11:55-18:30
1 stop11h 35m
Washington, D.C.London
IAD - LGW
IADLGW
Washington, D.C. Dulles Intl
Mon 8/12
19:40-10:55
1 stop10h 15m
London Gatwick
Sat 17/1
11:55-18:30
1 stop11h 35m
Washington, D.C.London
IAD - LGW
IADLGW
Washington, D.C. Dulles Intl
Sun 7/12
19:40-10:55
1 stop10h 15m
London Gatwick
Sat 17/1
11:55-18:30
1 stop11h 35m
Best time to book a flight from Washington, D.C. to Gatwick
Have a flexible travel schedule? Discover the best time to fly to Gatwick from Washington, D.C. with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. to London Gatwick Airport
What is the cheapest month to book a flight from Washington, D.C. to London Gatwick Airport?
Currently, April is the cheapest month in which you can book a flight from Washington, D.C. to London Gatwick Airport (average of £102). Flying from Washington, D.C. to London Gatwick Airport in July is currently the most expensive (average of £142). 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.
What’s the top stopover airport for flights from Washington, D.C. to London Gatwick Airport?
Share of one-stop return flights from Washington, D.C. to London Gatwick Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 57% of one-stop itineraries from Washington, D.C. to London Gatwick Airport on Cheapflights.
What’s the cheapest stopover airport for flights from Washington, D.C. to London Gatwick Airport?
Average return fare for one-stop flights from Washington, D.C. to London Gatwick Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
New York (JFK) is the most affordable one-stop option, with an average return flight price of £531.
What’s the fastest stopover option from Washington, D.C. to London Gatwick Airport?
Shortest average travel time for one-stop one-way flights from Washington, D.C. to London Gatwick Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 10h 15m.
Which airport typically offers the quickest stopover for flights from Washington, D.C. to London Gatwick Airport?
Average stopover duration for one-stop one-way flights from Washington, D.C. to London Gatwick Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 26m.
Related info for your journey
Find useful and relevant information for your journey from Washington, D.C. to Gatwick. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near London Gatwick Airport?
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Alternative routes for Washington, D.C. to Gatwick
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Washington, D.C. to Gatwick
Discover the top airline that operate flights from Washington, D.C. to Gatwick. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 September 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Washington, D.C. to Gatwick?
Cheapflights makes it easy to find Washington, D.C. to Gatwick flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Gatwick?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Washington, D.C. to Gatwick.
Can Cheapflights find flights from Washington, D.C. to Gatwick with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Washington, D.C. to Gatwick flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Washington, D.C. to Gatwick become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Gatwick from Washington, D.C. today and book when prices fit your budget.