LGW - IAD

£376 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 21/11. 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, 0 bags

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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Flight Deals

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.

Mon, 9 Mar - Tue, 17 Mar
TAP AIR PORTUGAL Logo
16:35 - 15:35LGW-IAD
27h 00m1 stop
TAP AIR PORTUGAL Logo
18:30 - 15:45IAD-LGW
17h 15m1 stop
£411TAP AIR PORTUGAL
Find Deal
Sat, 10 Jan - Sat, 17 Jan
Multiple Airlines Logo
14:00 - 11:38LGW-IAD
26h 38m2 stops
Multiple Airlines Logo
15:33 - 10:05IAD-LGW
13h 32m1 stop
£412Multiple Airlines
Find Deal
Mon, 9 Mar - Tue, 17 Mar
TAP AIR PORTUGAL Logo
16:35 - 15:35LGW-IAD
27h 00m1 stop
TAP AIR PORTUGAL Logo
18:30 - 09:50IAD-LGW
11h 20m1 stop
£413TAP AIR PORTUGAL
Find Deal
Fri, 9 Jan - Mon, 12 Jan
Multiple Airlines Logo
14:00 - 11:38LGW-IAD
26h 38m2 stops
Multiple Airlines Logo
15:33 - 10:00IAD-LGW
13h 27m1 stop
£414Multiple Airlines
Find Deal
Thu, 20 Nov - Tue, 2 Dec
Multiple Airlines Logo
14:00 - 07:50LGW-IAD
22h 50m1 stop
Multiple Airlines Logo
17:30 - 16:55IAD-LGW
18h 25m2 stops
£415Multiple Airlines
Find Deal
Thu, 12 Feb - Sun, 15 Feb
TAP AIR PORTUGAL Logo
16:00 - 21:00LGW-IAD
34h 00m1 stop
TAP AIR PORTUGAL Logo
22:30 - 15:45IAD-LGW
12h 15m1 stop
£417TAP AIR PORTUGAL
Find Deal
Wed, 12 Nov - Mon, 17 Nov
Icelandair Logo
11:55 - 18:30LGW-IAD
11h 35m1 stop
Icelandair Logo
19:40 - 10:55IAD-LGW
10h 15m1 stop
£459Icelandair
Find Deal
Thu, 27 Nov - Wed, 10 Dec
Icelandair Logo
11:55 - 18:30LGW-IAD
11h 35m1 stop
Icelandair Logo
19:40 - 10:55IAD-LGW
10h 15m1 stop
£461Icelandair
Find Deal
Tue, 25 Nov - Tue, 2 Dec
Icelandair Logo
11:55 - 18:30LGW-IAD
11h 35m1 stop
Icelandair Logo
19:40 - 10:55IAD-LGW
10h 15m1 stop
£463Icelandair
Find Deal
Fri, 21 Nov - Sat, 29 Nov
Icelandair Logo
11:55 - 18:30LGW-IAD
11h 35m1 stop
Icelandair Logo
19:40 - 10:55IAD-LGW
10h 15m1 stop
£464Icelandair
Find Deal

Everything you should know

Top airlines
TAP AIR PORTUGAL
Cheapest • from £411 (return)
Icelandair
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 30% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£411
Overall average: £523
TAP AIR PORTUGAL
Mon 9/3Tue 17/3
LGW - IAD • 1 stop
Cheapest one-way flight
£376
Multiple Airlines
Fri 21/11
LGW - IAD • 3 stops
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
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 November, where tickets cost £398 (return) on average. On the other hand, the most expensive months are July and October, where the average cost of round-trip tickets is £782 and £774 respectively.

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

Low seasonApril
Cheapest flight£376
Best time to beat the crowds (30% less expensive on average)
Most popular time to fly and prices are also 5% 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 £376 for a one-way ticket and £411 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.

  • 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.
7.1
IcelandairOverall score based on 562 reviews
6.9Comfort
7.0Entertainment
6.2Food
7.2Boarding
8.1Crew
Airline reviews

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

8.0 ExcellentAnonymous, Oct 2025KEF - SEA
Read more Icelandair reviews

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

It was good. The air plane is clean and staff were friendly.

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

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.

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

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