IAD - LGW

$248 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 1/10. 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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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

Mon, Jan 5 - Wed, Feb 25
Icelandair Logo
7:40 pm - 10:55 amIAD-LGW
10h 15m1 stop
Icelandair Logo
11:55 am - 6:30 pmLGW-IAD
11h 35m1 stop
$563Icelandair
Find Deal
Fri, Dec 5 - Tue, Dec 9
Multiple Airlines Logo
7:40 pm - 8:15 pmIAD-LGW
19h 35m2 stops
Multiple Airlines Logo
6:55 am - 6:30 pmLGW-IAD
16h 35m2 stops
$564Multiple Airlines
Find Deal
Sun, Dec 14 - Sun, Jan 11
Icelandair Logo
7:40 pm - 10:55 amIAD-LGW
10h 15m1 stop
Icelandair Logo
11:55 am - 6:30 pmLGW-IAD
11h 35m1 stop
$566Icelandair
Find Deal
Fri, Jan 23 - Fri, Jan 30
TAP AIR PORTUGAL Logo
10:30 pm - 3:45 pmIAD-LGW
12h 15m1 stop
TAP AIR PORTUGAL Logo
10:45 am - 3:15 pmLGW-IAD
33h 30m2 stops
$567TAP AIR PORTUGAL
Find Deal
Wed, Nov 26 - Wed, Dec 3
Icelandair Logo
7:40 pm - 10:55 amIAD-LGW
10h 15m1 stop
Icelandair Logo
11:55 am - 6:30 pmLGW-IAD
11h 35m1 stop
$568Icelandair
Find Deal
Thu, Nov 13 - Fri, Nov 21
Icelandair Logo
7:40 pm - 10:55 amIAD-LGW
10h 15m1 stop
Icelandair Logo
11:55 am - 6:30 pmLGW-IAD
11h 35m1 stop
$569Icelandair
Find Deal
Tue, Dec 30 - Tue, Jan 13
TAP AIR PORTUGAL Logo
5:30 pm - 9:25 amIAD-LGW
34h 55m2 stops
TAP AIR PORTUGAL Logo
4:35 pm - 9:00 pmLGW-IAD
33h 25m1 stop
$572TAP AIR PORTUGAL
Find Deal
Sat, Dec 6 - Sat, Dec 13
SWISS Logo
8:30 pm - 5:50 pmIAD-LGW
16h 20m1 stop
SWISS Logo
6:40 pm - 4:40 pmLGW-IAD
27h 00m1 stop
$590SWISS
Find Deal
Sun, Nov 30 - Fri, Dec 12
SWISS Logo
8:30 pm - 5:50 pmIAD-LGW
16h 20m1 stop
SWISS Logo
6:40 pm - 4:40 pmLGW-IAD
27h 00m1 stop
$609SWISS
Find Deal
Tue, Dec 2 - Fri, Dec 12
American Airlines Logo
7:59 am - 7:30 amIAD-LGW
18h 31m2 stops
American Airlines Logo
11:20 am - 11:08 pmLGW-IAD
16h 48m2 stops
$610American Airlines
Find Deal

Everything you should know

Top airlines
Icelandair
Cheapest • from $563 (round-trip)
TAP AIR PORTUGAL
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 32% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$563
Overall average: $635
Icelandair
Mon 1/5Wed 2/25
IAD - LGW • 1 stop
Cheapest one-way
$248
Typical prices: $182-$197
Multiple Airlines
Sat 1/10
IAD - LGW • 2 stops
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!
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 $493 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,165 and $1,003 respectively.

Good to know

Low seasonFebruary
Cheapest flight$248
Best time to beat the crowds but there is an average 28% increase in price.
Most popular time to fly with an average 37% 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 $248 for a one-way ticket and $563 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 $628 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 $781 and an overall rating of 7.1.

  • 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 2045 reviews
7.8Crew
7.0Boarding
7.1Comfort
6.2Food
6.3Entertainment
Airline reviews

There was no warning that they have added passport control after check in, the line was enormous and after 46 mins wait we missed our flight. Were forced to leave the airport and purchase new tickets at full price to board a later flight. TAP were unsympathetic and unhelpful.

2.0 MediocreAnonymous, Oct 2025LIS - LHR
Read more TAP AIR PORTUGAL reviews

There was no warning that they have added passport control after check in, the line was enormous and after 46 mins wait we missed our flight. Were forced to leave the airport and purchase new tickets at full price to board a later flight. TAP were unsympathetic and unhelpful.

Boarding we were jammed into a hot crowded bus waiting too long while another bus went in front of us. Appreciated blanket and pillow, movie available helped time pass, the food was not appealing so I had my own snacks, the flight is long, but nothing they can do about that. Staff adequate, flight good.

The business class seats were smaller and closer together than other airlines.

Didn't like much. Wheelchair assistance was almost nonexistent. No one at TAP check in process helpful. On the plane, stewards were not friendly and disorganized. Food was terrible for 8 hr flight. We were skipped at snack time and even though we tried to get attention using overhead call system no one even looked up at us to acknowledge. Being at the back of first section and by the lavatory we only were able to request when they came to pick up everyone else's garbage and they were nonchalant...no apology or even choice. The 1/2 half bread with slice of cheese was a waste. Deplaning was horrible but I'll blame lisbon airport for that. Plane left late at made good time still arrived about 15 behind schedule and for using remote deplaning and bus to terminal took another 20 min to gate. Those with connections were highly stressed. Took us 2 hrs from landing to get to ground transportation and exit airport. And that was with wheelchair assistance.

The person at the checkin was very helpful. We couldn’t check in through the keyosk, but the agent was very helpful.

Great price for really nice seats and the plane and staff were great, only 5-10 minute delays!

An old airplane with very uncomfortable seats in the Comfort “class! Small, narrow, and hard seat. Entertainment options are inferior, old movies. Boarding started at the back of the airplane, as we entered the aircraft last instead of after business class, risking the possibility that the comfort section would not have room for carry-on in the overhead bin. The food was ok. White wine was terrible. Overall, the flight felt worse than cheap airliners, and the price was as high as premium carriers.

I had a business class ticket from EWR to Madrid with a layover at LIS for 11 hours. It was obvious that I needed to pick up my luggage in Lisbon for 11 hours and check it in again when boarding the second flight to Madrid. Before buying the ticket, I called TAP customer service. Customer service assured me that I could get my luggage in Lisbon. When I arrived at Newark airport, I immediately asked to check my luggage to Lisbon. However, the TAP employee refused me, saying that I should resolve this issue upon arrival in Lisbon. She checked my luggage to Madrid. I asked the TAP employee at the gate to help me when boarding the plane, I asked the flight attendants manager on board the plane to help me. All the employees refused to help me and said that I should resolve this issue in Lisbon. It took me 4 hours to resolve this issue in Lisbon. I arrived at 11am and they didn't give me my luggage until 3pm. As a result, I was so tired after a sleepless night on the plane and 4 hours on my feet at the airport and all my plans were ruined that I couldn't fly to Madrid. It was a terrible experiance,

Check-in guidance for transfer flight, boarding, in-flight service, seat comfort, etc.

The seats were not designed to comfortably see people in coach for more than 10 minutes

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

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.

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.

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.

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.

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