IAD - LGW

$377 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 8/4. 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
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Everything you should know

Cheapest round-trip
$727
Typical prices: $506-$500
Icelandair
Fri 9/4Tue 9/8
IAD - LGW • 1 stop
Cheapest one-way
$377
Multiple Airlines
Tue 8/4
IAD - LGW • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Gatwick. You'll need at least 1 connection.
Insights
Insights
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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
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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

Fri, Sep 4 - Tue, Sep 8
Icelandair Logo
11:20 pm - 2:40 pm
IAD
-
LGW
10h 20m
1 stop
Icelandair Logo
3:40 pm - 10:15 pm
LGW
-
IAD
11h 35m
1 stop
$727Icelandair
Thu, Oct 15 - Mon, Oct 19
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
Icelandair Logo
3:40 pm - 7:20 pm
LGW
-
IAD
32h 40m
1 stop
$730Icelandair
Wed, Oct 14 - Wed, Oct 21
Icelandair Logo
11:20 pm - 2:40 pm
IAD
-
LGW
10h 20m
1 stop
Icelandair Logo
3:40 pm - 7:20 pm
LGW
-
IAD
32h 40m
1 stop
$731Icelandair
Mon, May 11 - Tue, May 26
Multiple Airlines Logo
8:30 pm - 8:10 pm
IAD
-
LGW
18h 40m
2 stops
Multiple Airlines Logo
8:35 pm - 8:29 pm
LGW
-
IAD
28h 54m
3 stops
$732Multiple Airlines
Mon, May 11 - Mon, May 18
Multiple Airlines Logo
8:30 pm - 8:10 pm
IAD
-
LGW
18h 40m
2 stops
Multiple Airlines Logo
9:30 pm - 8:29 pm
LGW
-
IAD
27h 59m
2 stops
$733Multiple Airlines
Thu, Oct 8 - Tue, Oct 20
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
Icelandair Logo
3:40 pm - 7:20 pm
LGW
-
IAD
32h 40m
1 stop
$734Icelandair
Thu, Sep 24 - Sun, Oct 4
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
Icelandair Logo
3:40 pm - 10:15 pm
LGW
-
IAD
11h 35m
1 stop
$735Icelandair
Thu, Oct 1 - Sat, Oct 10
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
Icelandair Logo
3:40 pm - 7:20 pm
LGW
-
IAD
32h 40m
1 stop
$736Icelandair
Fri, Oct 9 - Mon, Oct 19
Icelandair Logo
11:20 pm - 2:40 pm
IAD
-
LGW
10h 20m
1 stop
Icelandair Logo
3:40 pm - 7:20 pm
LGW
-
IAD
32h 40m
1 stop
$737Icelandair
Thu, Oct 1 - Sun, Oct 11
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m
1 stop
Icelandair Logo
3:40 pm - 10:15 pm
LGW
-
IAD
11h 35m
1 stop
$738Icelandair
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 September.

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$377
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 are some common layovers for flights from Dulles Intl (IAD) to London Gatwick (LGW)?

    With some airlines connecting from Dulles Intl (IAD) to London Gatwick (LGW) offering fights with single or double layovers, you may have to incorporate your layovers when budgeting for your flight. Some of the common layovers to expect on this route may include, but are not limited to, Reykjavik Keflavik Intl (KEF) and New York John F Kennedy Intl (JFK).

  • Which airline should I consider for my last-minute flight from Dulles Intl (IAD) to London Gatwick (LGW)?

    Norse Atlantic UK is among the airlines you should consider booking for your last-minute flight from Dulles Intl (IAD) to London Gatwick (LGW). This airline ranks highly among the airlines with the highest direct flights from IAD to LGW.

  • Which eco-friendly airline should I consider for my flight from Dulles Intl (IAD) to London Gatwick (LGW)?

    One of the eco-friendly airlines to consider for your flight from Dulles Intl (IAD) to London Gatwick (LGW) is Delta Air Lines. Delta is committed to sustainability, with initiatives like reducing carbon emissions, investing in fuel-efficient aircraft, and implementing recycling and waste reduction programs. They have also introduced passenger carbon offset options to support environmentally-friendly projects.

  • Which cities can I connect to after deplaning from my Dulles Intl (IAD) to London Gatwick (LGW) flight?

    After deplaning from your IAD to LGW flight, you can connect to nearby cities like London, Brighton, and Crawley. LGW is a well-connected international airport with various transportation options such as trains, buses, taxis, and car rentals.

  • 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 $377 for a one-way ticket and $727 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 7.2, TAP AIR PORTUGAL is the most popular choice. Icelandair is also a great choice for the route, with an average price of $636 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.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport

  • To conveniently travel from the city center to Dulles Intl (IAD) for your flight to London Gatwick (LGW), the most efficient transport option is the Silver Line Express Bus, which connects directly to the airport. It offers frequent departures and a relatively short travel time, making it a reliable choice for your journey.
  • When traveling from Washington Dulles Airport to London Gatwick Airport with significant luggage, you should consider Norse Atlantic UK Airline. The airline’s lenient carry-on policy allows one personal item, one carry-on bag, and up to three additional bags weighing less than 20 lb each at no extra fee.
  • Consider Delta Air Lines for your flight with kids from Dulles Intl (IAD) to London Gatwick (LGW). Delta offers a family-friendly experience with various amenities for children. Key among these amenities are kid-friendly meals, entertainment options including kids’ movies, and early boarding for families. These amenities are complemented by attentive staff, ensuring a comfortable journey for the whole family.
  • You can consider using Lufthansa Airlines to benefit from ticket and class upgrading services for your flight from Dulles Intl (IAD) to London Gatwick (LGW). During your first layover, the airline will likely send you an email requesting you consider an upgrade from economy to business class or first class at a reduced price.
  • Business travelers connecting to London Gatwick (LGW) from Dulles Intl (IAD) can consider booking their flights with Lufthansa. The airline Airbus A380 Aircraft offers an on-board lounge with spacious and comfortable seats that provide a conducive environment for business transactions during the flight.

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.
7.2
TAP AIR PORTUGALOverall score based on 2225 reviews
6.3Entertainment
6.2Food
7.8Crew
7.0Boarding
7.1Comfort
Airline reviews

The chicken was so dry it was impossible to eat. No substitute was offered. The port to charge my phone was broken and all I got was a shrug from the crew. The entertainment system was glitchy and subtitles didn’t load. Crew seemed fully uninterested and unfriendly.

4.0 OkayTuula, Apr 2026
SFO - LIS
Read more TAP AIR PORTUGAL reviews

The chicken was so dry it was impossible to eat. No substitute was offered. The port to charge my phone was broken and all I got was a shrug from the crew. The entertainment system was glitchy and subtitles didn’t load. Crew seemed fully uninterested and unfriendly.

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.

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