LGW - IAD

£203 Find Cheap Flights from London Gatwick Airport to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Gatwick to Washington, D.C. departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Washington, D.C., as well as popular online travel agencies
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Cheap Flights from Gatwick to Washington, D.C. (LGW-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Gatwick to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Thu, 23 Oct - Mon, 27 Oct
TAP AIR PORTUGAL Logo
10:35 - 20:50LGW-IAD
15h 15m1 stop
TAP AIR PORTUGAL Logo
18:30 - 15:45IAD-LGW
17h 15m1 stop
£361TAP AIR PORTUGAL
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Thu, 4 Sep - Mon, 8 Sep
Logo
14:00 - 18:19LGW-IAD
33h 19m1 stop
Logo
19:14 - 10:00IAD-LGW
33h 46m1 stop
£362
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Thu, 6 Nov - Mon, 10 Nov
Icelandair Logo
11:55 - 18:20LGW-IAD
11h 25m1 stop
Icelandair Logo
19:40 - 10:55IAD-LGW
10h 15m1 stop
£364Icelandair
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Fri, 31 Oct - Mon, 3 Nov
Icelandair Logo
11:55 - 19:20LGW-IAD
11h 25m1 stop
Icelandair Logo
19:40 - 10:55IAD-LGW
10h 15m1 stop
£367Icelandair
Find Deal
Sat, 8 Nov - Fri, 14 Nov
Icelandair Logo
11:55 - 18:20LGW-IAD
11h 25m1 stop
Icelandair Logo
19:40 - 10:55IAD-LGW
10h 15m1 stop
£369Icelandair
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Tue, 4 Nov - Mon, 10 Nov
Icelandair Logo
11:55 - 18:20LGW-IAD
11h 25m1 stop
Icelandair Logo
19:40 - 10:55IAD-LGW
10h 15m1 stop
£371Icelandair
Find Deal
Fri, 5 Dec - Mon, 15 Dec
Icelandair Logo
11:55 - 18:20LGW-IAD
11h 25m1 stop
Icelandair Logo
19:40 - 10:55IAD-LGW
10h 15m1 stop
£376Icelandair
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Wed, 17 Sep - Wed, 1 Oct
Icelandair Logo
15:40 - 22:10LGW-IAD
11h 30m1 stop
Icelandair Logo
20:30 - 14:40IAD-LGW
13h 10m1 stop
£387Icelandair
Find Deal
Tue, 23 Sep - Tue, 30 Sep
TAP AIR PORTUGAL Logo
10:35 - 20:50LGW-IAD
15h 15m1 stop
TAP AIR PORTUGAL Logo
22:20 - 15:35IAD-LGW
12h 15m1 stop
£390TAP AIR PORTUGAL
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Thu, 11 Sep - Thu, 18 Sep
SWISS Logo
18:40 - 16:15LGW-IAD
26h 35m1 stop
SWISS Logo
20:45 - 17:50IAD-LGW
16h 05m1 stop
£435SWISS
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Booking Insights

KAYAK's insights & trends for Gatwick to Washington, D.C. flights

Get data-powered insights and trends into flights from Gatwick to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport is February, where tickets cost £421 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is £784 and £728 respectively.

How far in advance should I book a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

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Good to know - Cheap tickets from London Gatwick Airport to Washington, D.C.

Low seasonApril
Cheapest flight£203
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly and prices are also 3% lower on average.
Flight from London Gatwick Airport to Washington, D.C.

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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Gatwick Airport to Washington, D.C. flights

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

    In the last 3 days, the lowest price for a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport was £270 for a one-way ticket and £481 for a return.

  • Which aircraft models fly most regularly from London Gatwick Airport to Washington, D.C.?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London Gatwick Airport to Washington, D.C.?

    Star Alliance is the only airline alliance operating flights between London Gatwick Airport and Washington, D.C..

  • How does KAYAK find such low prices on flights from London Gatwick Airport to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Gatwick Airport to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Gatwick Airport to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from London Gatwick Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Gatwick Airport to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Washington, D.C. with an airline and back to London Gatwick Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Gatwick Airport to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from London Gatwick Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Gatwick to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from London to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Gatwick to Washington, D.C.? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
IcelandairOverall score based on 519 reviews
8.0Crew
7.0Entertainment
7.1Boarding
6.2Food
6.9Comfort
Airline reviews

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

4.0 OkayAnonymous, Jul 2025IAD - KEF
Read more Icelandair reviews

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Everything you need to know for your flight from Gatwick to Washington, D.C.

Information on your arrival and departure airports

London Gatwick Airport (LGW)
Dulles Intl (IAD)

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