LGW - IAD

£332 Find Cheap Flights from London Gatwick Airport to Washington, D.C. – Compare and Save

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 15/9. 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, 0 bags

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Everything you should know

Cheapest return fare
£439
Typical prices: £541-£665
Icelandair
Thu 10/9Thu 17/9
LGW - IAD • 1 stop
Cheapest one-way flight
£332
Multiple Airlines
Tue 15/9
LGW - IAD • 2 stops
Top airlines
Cheapest • from £439 (return)
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Gatwick and Washington, D.C.. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £462 (return)
Shortest trip • 11h 34m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
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.

Thu, 10 Sep - Thu, 17 Sep
Icelandair Logo
13:00 - 19:20
LGW
-
IAD
11h 20m
1 stop
Icelandair Logo
20:30 - 14:40
IAD
-
LGW
13h 10m
1 stop
£439Icelandair
Tue, 22 Sep - Fri, 25 Sep
Icelandair Logo
15:40 - 22:15
LGW
-
IAD
11h 35m
1 stop
Icelandair Logo
23:20 - 14:40
IAD
-
LGW
10h 20m
1 stop
£439Icelandair
Tue, 8 Sep - Tue, 15 Sep
Icelandair Logo
15:40 - 19:20
LGW
-
IAD
32h 40m
1 stop
Icelandair Logo
23:20 - 14:40
IAD
-
LGW
10h 20m
1 stop
£440Icelandair
Tue, 25 Aug - Sat, 29 Aug
Icelandair Logo
15:40 - 19:20
LGW
-
IAD
32h 40m
1 stop
Icelandair Logo
20:30 - 11:45
IAD
-
LGW
10h 15m
1 stop
£440Icelandair
Fri, 18 Sep - Mon, 21 Sep
Icelandair Logo
15:40 - 19:20
LGW
-
IAD
32h 40m
1 stop
Icelandair Logo
20:30 - 14:40
IAD
-
LGW
13h 10m
1 stop
£440Icelandair
Thu, 3 Dec - Sun, 6 Dec
TAP AIR PORTUGAL Logo
16:00 - 20:35
LGW
-
IAD
33h 35m
1 stop
TAP AIR PORTUGAL Logo
22:30 - 15:45
IAD
-
LGW
12h 15m
1 stop
£441TAP AIR PORTUGAL
Fri, 4 Sep - Mon, 7 Sep
Icelandair Logo
15:40 - 22:15
LGW
-
IAD
11h 35m
1 stop
Icelandair Logo
20:30 - 14:40
IAD
-
LGW
13h 10m
1 stop
£442Icelandair
Wed, 2 Sep - Mon, 14 Sep
Icelandair Logo
15:40 - 22:15
LGW
-
IAD
11h 35m
1 stop
Icelandair Logo
20:30 - 14:40
IAD
-
LGW
13h 10m
1 stop
£442Icelandair
Thu, 10 Sep - Mon, 28 Sep
Icelandair Logo
13:00 - 19:20
LGW
-
IAD
11h 20m
1 stop
Icelandair Logo
20:30 - 14:40
IAD
-
LGW
13h 10m
1 stop
£442Icelandair
Fri, 6 Nov - Sat, 7 Nov
TAP AIR PORTUGAL Logo
10:40 - 20:35
LGW
-
IAD
14h 55m
1 stop
TAP AIR PORTUGAL Logo
17:25 - 09:50
IAD
-
LGW
11h 25m
1 stop
£443TAP AIR PORTUGAL
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 April, where tickets cost £0 (return) on average. On the other hand, the most expensive months are July and September, where the average cost of round-trip tickets is £644 and £600 respectively.

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

Low season

October

Cheapest flight

£332
Best time to beat the crowds (27% less expensive on average)
Most popular time to fly (25% more expensive 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 5 days, the lowest price for a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport was £334 for a one-way ticket and £439 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.
7.0
IcelandairOverall score based on 716 reviews
6.9Entertainment
8.0Crew
6.9Comfort
6.1Food
7.2Boarding
Airline reviews

1. No food on a 8 hr flight is a travesty! The fare was not that low. 2. The entertainment was pretty bad and you had to buy headphones!!! 3. Only 2 toilets for the whole Economy section!!

4.0 OkayAnonymous, Jul 2026
LGW - KEF
Read more Icelandair reviews

1. No food on a 8 hr flight is a travesty! The fare was not that low. 2. The entertainment was pretty bad and you had to buy headphones!!! 3. Only 2 toilets for the whole Economy section!!

The flight itself was fine, even with a one-hour delay leaving on the Reykjavik tarmac (the lost time was made up during flight). Our experience at the Reykjavik airport on arrival was terrible due mostly to the one hour it took for passport control. Only two stations were open for our category, and the room was full with a huge crowd.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

did internet check in but still had to get checked in at the counter and this was not the first time. Bummer!

Horrible. I was placed on standby for no reason and they would no allow me to fix the seating into the gate. Plane was hot. Entertainment was abysmal. Seats only take old USB or even older jack plugs — not lightening plugs like all modern phones. Food is pay as you go and awful. Seats were small and uncomfortable. I do not recommend Iceland air.

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

Paying $75 for my bag is disgusting. Got off ground late so I missed my connections. Kept us waiting for passengers in the cold. Will not use them again.

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