IAD - LGW

$375 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 2/16. 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
$577
Overall average: $634
TAP AIR PORTUGAL
Fri 4/17Wed 4/22
IAD - LGW • 2 stops
Cheapest one-way
$375
Typical prices: $313-$331
Icelandair
Mon 2/16
IAD - LGW • 1 stop
Top airlines
TAP AIR PORTUGAL
Cheapest • from $610 (round-trip)
Icelandair
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 33% price drop
June
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

Fri, Apr 17 - Wed, Apr 22
TAP AIR PORTUGAL Logo
5:05 pm - 8:25 pm
IAD
-
LGW
22h 20m2 stops
TAP AIR PORTUGAL Logo
10:35 am - 8:35 pm
LGW
-
IAD
15h 00m1 stop
$577TAP AIR PORTUGAL
Sun, Apr 12 - Sun, Apr 19
Icelandair Logo
8:30 pm - 2:40 pm
IAD
-
LGW
13h 10m1 stop
Icelandair Logo
3:40 pm - 7:20 pm
LGW
-
IAD
32h 40m1 stop
$578Icelandair
Fri, May 1 - Sun, May 3
TAP AIR PORTUGAL Logo
5:05 pm - 9:45 am
IAD
-
LGW
11h 40m1 stop
TAP AIR PORTUGAL Logo
9:15 pm - 8:35 pm
LGW
-
IAD
28h 20m2 stops
$579TAP AIR PORTUGAL
Fri, Jan 23 - Sun, Feb 1
TAP AIR PORTUGAL Logo
10:30 pm - 3:45 pm
IAD
-
LGW
12h 15m1 stop
TAP AIR PORTUGAL Logo
9:05 am - 9:00 pm
LGW
-
IAD
16h 55m2 stops
$580TAP AIR PORTUGAL
Wed, Jan 14 - Wed, Jan 21
SWISS Logo
5:25 pm - 5:50 pm
IAD
-
LGW
19h 25m1 stop
SWISS Logo
6:40 pm - 4:40 pm
LGW
-
IAD
27h 00m1 stop
$581SWISS
Thu, Apr 16 - Tue, Apr 21
TAP AIR PORTUGAL Logo
10:35 pm - 8:25 pm
IAD
-
LGW
16h 50m2 stops
TAP AIR PORTUGAL Logo
4:25 pm - 8:35 pm
LGW
-
IAD
33h 10m1 stop
$584TAP AIR PORTUGAL
Sat, Feb 14 - Sat, Feb 21
TAP AIR PORTUGAL Logo
5:30 pm - 9:50 am
IAD
-
LGW
11h 20m1 stop
TAP AIR PORTUGAL Logo
4:35 pm - 9:00 pm
LGW
-
IAD
33h 25m1 stop
$585TAP AIR PORTUGAL
Tue, May 5 - Sun, May 10
TAP AIR PORTUGAL Logo
10:35 pm - 3:35 pm
IAD
-
LGW
12h 00m1 stop
TAP AIR PORTUGAL Logo
10:35 am - 8:35 pm
LGW
-
IAD
15h 00m1 stop
$586TAP AIR PORTUGAL
Wed, Apr 15 - Wed, Apr 22
TAP AIR PORTUGAL Logo
10:35 pm - 8:30 pm
IAD
-
LGW
16h 55m2 stops
TAP AIR PORTUGAL Logo
10:35 am - 8:35 pm
LGW
-
IAD
15h 00m1 stop
$587TAP AIR PORTUGAL
Sun, Feb 15 - Sat, Feb 21
TAP AIR PORTUGAL Logo
10:30 pm - 3:45 pm
IAD
-
LGW
12h 15m1 stop
TAP AIR PORTUGAL Logo
4:35 pm - 9:00 pm
LGW
-
IAD
33h 25m1 stop
$588TAP AIR PORTUGAL
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.

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 November, where tickets cost $447 (return) on average. On the other hand, the most expensive months are June and February, where the average cost of round-trip tickets is $1,003 and $935 respectively.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$375
Best time to beat the crowds but there is an average 40% increase in price.
Most popular time to fly with an average 51% increase in price.
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 $375 for a one-way ticket and $579 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.

  • 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 airline 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.
7.0
IcelandairOverall score based on 591 reviews
8.0Crew
7.0Entertainment
7.2Boarding
6.2Food
6.9Comfort
Airline reviews

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

8.0 ExcellentAnonymous, Dec 2025
BOS - KEF
Read more Icelandair reviews

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

Again, we paid $ 328.00 for specific seats are were assigned those seats.

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.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

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

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

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

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!

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

Information on your arrival and departure airports

Washington Dulles Airport (IAD)
Gatwick (LGW)