IAD - LGW

$365 Find Cheap Flights from Washington Dulles Airport to London Gatwick Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Gatwick departing on 5/26. 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 London Gatwick Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to London, 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 Washington, D.C. to London, as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$691
Typical prices: $819-$779
Multiple Airlines
Sat 5/9Thu 5/28
IAD - LGW • 1 stop
Cheapest one-way
$365
Multiple Airlines
Tue 5/26
IAD - LGW • 3 stops
Top airlines
Cheapest • from $707 (round-trip)
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Gatwick. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $593 (round-trip)
Shortest trip • 10h 10m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 36% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Gatwick!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Gatwick (IAD-LGW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Gatwick 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 round-trip flight deals from Dulles Intl to Gatwick

Sat, May 9 - Thu, May 28
Multiple Airlines Logo
7:27 pm - 10:00 am
IAD
-
LGW
33h 33m
1 stop
Multiple Airlines Logo
2:00 pm - 2:12 pm
LGW
-
IAD
29h 12m
2 stops
$691Multiple Airlines
Wed, Sep 23 - Wed, Sep 30
Turkish Airlines Logo
1:20 pm - 1:10 pm
IAD
-
LGW
18h 50m
1 stop
Turkish Airlines Logo
5:35 pm - 11:35 am
LGW
-
IAD
23h 00m
1 stop
$703Turkish Airlines
Sun, Jul 19 - Sun, Aug 30
Multiple Airlines Logo
1:38 pm - 10:00 am
IAD
-
LGW
15h 22m
1 stop
Multiple Airlines Logo
2:00 pm - 12:53 pm
LGW
-
IAD
27h 53m
1 stop
$705Multiple Airlines
Thu, May 7 - Sun, May 17
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
Icelandair Logo
1:00 pm - 7:20 pm
LGW
-
IAD
11h 20m
1 stop
$707Icelandair
Tue, Sep 22 - Wed, Sep 30
Turkish Airlines Logo
1:20 pm - 9:55 am
IAD
-
LGW
15h 35m
1 stop
Turkish Airlines Logo
5:35 pm - 11:35 am
LGW
-
IAD
23h 00m
1 stop
$708Turkish Airlines
Thu, May 14 - Tue, Jun 2
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
Icelandair Logo
1:00 pm - 7:20 pm
LGW
-
IAD
11h 20m
1 stop
$711Icelandair
Thu, Sep 24 - Tue, Sep 29
Turkish Airlines Logo
9:45 pm - 1:10 pm
IAD
-
LGW
34h 25m
1 stop
Turkish Airlines Logo
7:25 am - 11:35 am
LGW
-
IAD
33h 10m
1 stop
$712Turkish Airlines
Mon, May 11 - Thu, May 14
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
Icelandair Logo
1:00 pm - 7:20 pm
LGW
-
IAD
11h 20m
1 stop
$715Icelandair
Fri, May 8 - Mon, May 11
Multiple Airlines Logo
11:20 pm - 6:00 pm
IAD
-
LGW
13h 40m
2 stops
Multiple Airlines Logo
9:30 pm - 8:29 pm
LGW
-
IAD
27h 59m
2 stops
$716Multiple Airlines
Wed, May 20 - Thu, Jun 4
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
Icelandair Logo
1:00 pm - 7:20 pm
LGW
-
IAD
11h 20m
1 stop
$717Icelandair
Booking Insights

KAYAK's insights & trends for Dulles Intl to Gatwick flights

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

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport departing in May.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to London Gatwick 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 Washington, D.C. Dulles Intl Airport to London Gatwick Airport is February, where tickets cost $426 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,012 and $862 respectively.

Good to know

Low seasonFebruary
Cheapest flight$365
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Washington Dulles Airport to London Gatwick Airport

When to book flights from Dulles Intl to Gatwick

Are your dates flexible? Find out the best times to travel from Dulles Intl to Gatwick based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 Washington Dulles Airport to London Gatwick Airport flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport was $365 for a one-way ticket and $691 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and London Gatwick Airport?

    Yes

  • Which aircraft models fly most regularly from Washington Dulles Airport to London Gatwick Airport?

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

  • Which airline alliances offer flights from Washington Dulles Airport to London Gatwick Airport?

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

  • Which is the best airline for flights from Washington, D.C. to London, TAP AIR PORTUGAL or Icelandair?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to London are TAP AIR PORTUGAL and Icelandair. With an average price for the route of $447 and an overall rating of 7.1, TAP AIR PORTUGAL is the most popular choice. Icelandair is also a great choice for the route, with an average price of $638 and an overall rating of 7.0.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to London Gatwick Airport?

    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 Washington Dulles Airport to London Gatwick Airport.

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

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

  • What is the Hacker Fare option on flights from Washington Dulles Airport to London Gatwick Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Gatwick Airport with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and LGW can sometimes prove cheaper using this method.

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

    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 London Gatwick Airport from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Dulles Intl to Gatwick

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to London. 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 Dulles Intl to Gatwick? 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
TAP AIR PORTUGALOverall score based on 2214 reviews
7.0Boarding
6.3Entertainment
7.8Crew
6.2Food
7.1Comfort
Airline reviews

The flight crew were absolute rock stars. When they came to the gate they looked like royalty, so chic. They also were extremely kind. Food was good and I loved the lack of plastic waste. The flight was lovely and smooth.

10.0 ExcellentRebecca, Apr 2026
BOS - OPO
Read more TAP AIR PORTUGAL reviews

The flight crew were absolute rock stars. When they came to the gate they looked like royalty, so chic. They also were extremely kind. Food was good and I loved the lack of plastic waste. The flight was lovely and smooth.

We were unable to check in due to technical problems on TAP’s end. The flight was delayed forty minutes with no reason given. We received timely notice of the flight delay. We were also notified of a gate change. The new gate was at a different terminal. When we got to the new terminal, we learned that we had to go back to the old terminal first to check in. This information should have been included along with the gate change notification. Also unexplained, the steward skipped us when offering breakfast.

It poured rain, our luggage was sitting out in it uncovered on the transport cart while our plane was delayed! Nice business class plane for short flight to Lisbon, but more delay & rain in Lisbon, with terrible Business class seat with no entertainment & cold food on longer flight to London…ALL LUGGAGE AND CLOTHES INSIDE THEM WERE SOAKED THROUGH!!! Could only try with hair dryer to get some drying before quick turn round to train trip.

Menzies group staff not very sympathetic good at breaking up families during the boarding process

They left our luggage uncovered on tarmac in pouring rain during an hour delay of departure! At our final destination, we found ALL OF OUR CLOTHES/SHOES soaked all the way through!! Our 1st connection plane was a great business class accommodation but only 50 minutes long. Our 2nd connection from Lisbon (another delay with luggage uncovered on tarmac) had only the extra legroom and mediocre food in business class - no entertainment and no extra comfort seating. Will not use TAP Air Portugal again!

Horrible experience at tbe check in ladie she was very racist ,she doesn't speak portuguese too and forced me to check in my carrion bag and I saw everyone with carrion bag inside anda lot of space ,she was rude unprofessional

No difference between business class and normal same seat everything same, waste of money

Absolutely unacceptable level of service for a Business class: lousy drink and food options, disgusting food (inedible meat, watery rice, etc...), pathetic level of attentiveness from staff, Business class restrooms were not accessible for long periods because blocked of by staff...overall extremely disappointing, will NEVER fly Business on TAP again.

First time flying Business with Tap, I think it was a very good experience. It beats many domestic US carriers, the food options were really great, authentic Portuguese food, wines & deserts. Next time will do the free 24-48 hour stopover in Lisbon or Porto for sure.

Late. Lack of updates. Rude hostesses. Terrible food. Lack of headphones.

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Screen didn't work, and neither did the button to tilt the seat even though the seat was comfortable

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

I’m considering never flying with Iceland Air again. The seats in economy are torture. Now you only get water, coffee and tea for free- really? No food, not a single peanut. The passport line was insane, everyone was worried about catching their connecting flight. This was the third time I’ve barely made my connection, had to run. It can’t be that my choice is to use the bathroom (during the 50 minutes between flights) or make my flight. SO stressful! Ugh.

Nice, quick flight. There were lots of empty seats so they told me I could sit next to the emergency exit where I would have more legroom.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Everything you need to know for your flight from Dulles Intl to Gatwick

Information on your arrival and departure airports