LGW - IAD

£374 Find Cheap Flights from London Gatwick Airport to Washington, D.C. – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£404
Typical prices: £364-£526
TAP AIR PORTUGAL
Thu 6/12Thu 13/12
LGW - IAD • 1 stop
Cheapest one-way flight
£374
Typical prices: £377-£546
TAP AIR PORTUGAL
Fri 23/11
LGW - IAD • 1 stop
Direct flights
Not available
There are currently no direct flights between London Gatwick Airport and Washington, D.C. Dulles Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
22 weeks
in advance
Our data shows that travellers who book at least 22 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 22% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Reykjavik Keflavik Intl (KEF)
Cheapest • Avg £439 (return)
Madrid Barajas (MAD)
Shortest trip • 12h 17m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Gatwick to Washington, D.C. (LGW-IAD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Gatwick to Washington, D.C.

Sun, 6 Dec - Sun, 13 Dec
TAP AIR PORTUGAL Logo
10:40 - 15:15LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
33h 35m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
22:30 - 15:45IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
12h 15m1 stop Lisbon Humberto Delgado
£404TAP AIR PORTUGAL
Mon, 9 Nov - Thu, 12 Nov
Icelandair Logo
11:55 - 18:30LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:55IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
10h 15m1 stop Reykjavik Keflavik Intl
£404Icelandair
Wed, 18 Nov - Sun, 22 Nov
Icelandair Logo
11:55 - 18:30LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:55IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
10h 15m1 stop Reykjavik Keflavik Intl
£405Icelandair
Mon, 23 Nov - Sun, 6 Dec
TAP AIR PORTUGAL Logo
16:35 - 14:40LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
27h 05m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
22:30 - 15:45IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
12h 15m1 stop Lisbon Humberto Delgado
£405TAP AIR PORTUGAL
Tue, 22 Dec - Tue, 29 Dec
Icelandair Logo
11:55 - 18:30LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:55IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
10h 15m1 stop Reykjavik Keflavik Intl
£405Icelandair
Wed, 18 Nov - Tue, 24 Nov
Icelandair Logo
11:55 - 18:30LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:55IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
10h 15m1 stop Reykjavik Keflavik Intl
£409Icelandair
Fri, 6 Nov - Thu, 12 Nov
Icelandair Logo
11:55 - 18:30LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:55IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
10h 15m1 stop Reykjavik Keflavik Intl
£409Icelandair
Wed, 10 Feb - Mon, 15 Feb
Icelandair Logo
11:55 - 18:30LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:55IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
10h 15m1 stop Reykjavik Keflavik Intl
£411Icelandair
Fri, 12 Feb - Sun, 14 Feb
Icelandair Logo
11:55 - 18:30LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:55IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
10h 15m1 stop Reykjavik Keflavik Intl
£415Icelandair
Sun, 6 Dec - Sun, 13 Dec
TAP AIR PORTUGAL Logo
10:40 - 20:35LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
14h 55m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
22:30 - 15:45IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
12h 15m1 stop Lisbon Humberto Delgado
£417TAP AIR PORTUGAL
Booking Insights

Price, demand, and travel trends for London Gatwick Airport to Washington, D.C. Dulles Intl Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

Return flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport typically range from £364 to £526. The lowest price found in the past 5 days was £404 on TAP AIR PORTUGAL.

What's the cheapest day of the week to fly from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from London Gatwick Airport to Washington, D.C. Dulles Intl Airport. It's 8% cheaper than the average day, while Saturday is the most expensive, with prices 20% higher.

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

•January is the cheapest month to fly from London Gatwick Airport to Washington, D.C. Dulles Intl Airport at £335 return.
•July (£523) and October (£490) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 56% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport the cheapest?

Flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport are cheapest 22 weeks before departure. Booking in this window typically costs about 44% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for London Gatwick Airport to Washington, D.C. Dulles Intl Airport flights

Low season

January

Cheapest flight

£374
Beat the crowds with an average 45% drop in traveller numbers.
The most popular month to fly with an average 71% increase in traveller numbers.
One-way flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport

When to book flights from Gatwick to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Gatwick to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your London Gatwick Airport to Washington, D.C. Dulles Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

    Two cabin classes are available on flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport:

    • Economy class
    • Business Class

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

    A direct flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport takes 00m, covering 3,683 miles.

  • Do I need a passport to fly from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a London Gatwick Airport to Washington, D.C. Dulles Intl Airport flight?

    Return flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport range from £364 to £526, with an average of £429 over the past 12 months. Anything below £364 counts as a good deal.

  • How expensive are last-minute London Gatwick Airport to Washington, D.C. Dulles Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 32% above the £429 route average. Book 22 weeks before departure for the lowest fares.

  • How are flight prices from London Gatwick Airport to Washington, D.C. Dulles Intl Airport looking right now?

    One-way fares from London Gatwick Airport to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about £377, which is 24% below the typical average for this route.

  • Which car hire options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car hire companies, with daily rates starting from around £18 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

  • Which airports can I use when flying from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

    Flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport usually depart from London Gatwick (LGW) and arrive at Washington, D.C. Dulles Intl (IAD).

  • Which airports do connecting flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport pass through?

    One-stop flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport most commonly connect through:

    • Reykjavik Keflavik Intl (KEF) – 80% of one-stop connections
    • Paris Charles de Gaulle (CDG) – 8% of one-stop connections
    • Zurich (ZRH) – 4% of one-stop connections
    • Istanbul (IST) – 4% of one-stop connections

  • Can I save money by using flexible dates for flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

    Yes. Flexible dates can save you up to 24% on flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport. Thursday is the cheapest departure day at £396 return on average, while Saturday is the most expensive at £517, a difference of £121.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

    Flying via Madrid Barajas (MAD) gives the shortest average 1-stop total travel time of 12h 17m, compared to 12h 22m via Paris Charles de Gaulle (CDG) and 12h 26m via Reykjavik Keflavik Intl (KEF).

  • What is the time difference between London Gatwick Airport and Washington, D.C. Dulles Intl Airport?

    Washington, D.C. Dulles Intl Airport is 4 hours behind London Gatwick Airport (Eastern Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Washington, D.C. Dulles Intl Airport?

    Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Charles Sumner School Museum and Archives, Capital One Arena, and Grand Hyatt Washington. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

Your guide to booking London Gatwick Airport to Washington, D.C. Dulles Intl Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Saturday. On this route, Thursday flights average £396, about £121 less than Saturday fares (23% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 22 weeks before you fly. On this route, that window historically saves about 44% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London Gatwick Airport to Washington, D.C. Dulles Intl Airport trip for January. Fares historically average £335 return in that month – typically £188 less than the most expensive month, which is July (based on the last 12 months).

More options for your flight from Gatwick to Washington, D.C.

Complete your trip to Washington, D.C. with a hotel stay or car hire

Car hire in Washington, D.C.
Hotels in Washington, D.C.
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