HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Gatwick

$346+ Cheap flights from Dulles Intl (IAD) to Gatwick (LGW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LGW
Apr 17 — Apr 241
Fri 4/17
Fri 4/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Gatwick with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Gatwick

Cheapest flights from Dulles Intl to Gatwick
Explore the most affordable flight options available from Dulles Intl to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 18, 2026.

This Gotogate deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:35 pm
IAD
-
LGW
2 stops16h 50m
TAP AIR PORTUGAL
Mon 5/44:25 pm
LGW
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 3/13$606
This oojo deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:05 pm
IAD
-
LGW
1 stop17h 30m
TAP AIR PORTUGAL
Wed 5/134:25 pm
LGW
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 3/13$607
This Mytrip deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2610:35 pm
IAD
-
LGW
2 stops19h 00m
Multiple Airlines
Wed 5/66:00 am
LGW
-
IAD
2 stops19h 35m
Multiple Airlines
Deal found 3/14$609
This oojo deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:35 pm
IAD
-
LGW
2 stops16h 50m
TAP AIR PORTUGAL
Wed 5/610:35 am
LGW
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 3/16$612
This flugladen.de deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:05 pm
IAD
-
LGW
1 stop17h 30m
TAP AIR PORTUGAL
Tue 5/510:35 am
LGW
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 3/14$618
This FlightHub deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:05 pm
IAD
-
LGW
1 stop11h 40m
TAP AIR PORTUGAL
Thu 5/710:35 am
LGW
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 3/18$620
This Kiwi.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:05 pm
IAD
-
LGW
1 stop11h 40m
TAP AIR PORTUGAL
Tue 5/510:35 am
LGW
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 3/15$621
This Mytrip deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Mon 4/203:40 pm
LGW
-
IAD
1 stop32h 40m
Icelandair
Deal found 3/14$622
This oojo deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:05 pm
IAD
-
LGW
1 stop11h 40m
TAP AIR PORTUGAL
Mon 5/44:25 pm
LGW
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 3/17$623
This Mytrip deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Sun 4/193:40 pm
LGW
-
IAD
1 stop32h 40m
Icelandair
Deal found 3/14$625

Find flight deals from Dulles Intl to Gatwick

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Gatwick (LGW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$606
(Gotogate)

One-way from

$346
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$663
Provider with most accurate pricing for Washington, D.C. Dulles Intl-London Gatwick flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-London Gatwick flights.
Search Deals
From Washington, D.C. Dulles Intl to London Gatwick
Search Deals
One-way flight from Washington, D.C. Dulles Intl to London Gatwick
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($220 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Gatwick that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 18, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 4/13

8:30 pm-2:40 pm

1 stop13h 10m

London Gatwick

Wed 4/22

3:40 pm-7:20 pm

1 stop32h 40m

$712
Quickest round-trip

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 5/17

11:20 pm-2:40 pm

1 stop10h 20m

London Gatwick

Thu 5/28

1:00 pm-7:20 pm

1 stop11h 20m

$730

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sat 4/18

1:20 pm-1:10 pm

1 stop18h 50m

London Gatwick

Tue 4/21

7:00 am-7:50 pm

1 stop17h 50m

$737

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sat 4/25

8:30 pm-2:40 pm

1 stop13h 10m

London Gatwick

Thu 6/11

1:00 pm-7:20 pm

1 stop11h 20m

$758

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 4/1

6:15 pm-9:25 am

1 stop10h 10m

London Gatwick

Wed 4/8

10:25 am-8:46 pm

2 stops15h 21m

$773

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 4/26

10:35 pm-9:45 am

1 stop30h 10m

London Gatwick

Thu 4/30

9:20 pm-3:10 pm

2 stops22h 50m

$853

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 6/2

8:30 pm-2:40 pm

1 stop13h 10m

London Gatwick

Thu 6/18

1:00 pm-7:20 pm

1 stop11h 20m

$864

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 5/26

8:30 pm-2:40 pm

1 stop13h 10m

London Gatwick

Sun 6/7

3:40 pm-10:15 pm

1 stop11h 35m

$864

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 5/13

6:15 pm-9:25 am

1 stop10h 10m

London Gatwick

Fri 5/22

10:25 am-7:35 pm

1 stop14h 10m

$871

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 5/19

8:30 pm-2:40 pm

1 stop13h 10m

London Gatwick

Tue 6/2

1:00 pm-7:20 pm

1 stop11h 20m

$908

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Dulles Intl to Gatwick

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Gatwick in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-London Gatwick Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-London Gatwick Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-London Gatwick Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-London Gatwick Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-London Gatwick Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of $363). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of $995). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Gatwick

Get insights into the airlines that provide service to Gatwick. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Gatwick. Reviews last updated March 18, 2026.
Peruse reviews from past customers who have flown with Icelandair from Washington, D.C. Dulles Intl Airport to London Gatwick Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.1
Good
622 reviews

Food

6.2

Crew

8.1

Comfort

7.0

Entertainment

7.0

Boarding

7.2

Overall

7.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

ZRH - KEF

Almost 7 hr flight and no ear buds provided and no food. I would choose a different airline next time for that reason.
Icelandair
7.1
Good
622 reviews
Icelandair
7.1
Good
622 reviews

Food

6.2

Crew

8.1

Comfort

7.0

Entertainment

7.0

Boarding

7.2

Overall

7.1

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

ZRH - KEF

Almost 7 hr flight and no ear buds provided and no food. I would choose a different airline next time for that reason.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Gatwick. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    A quick flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport can take about 10h 10m. Icelandair provides one of the quickest options available for as low as $773. Airlines will cover a distance of 3683 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to London Gatwick Airport round-trip?

    Our cheapest airline available from Washington, D.C. Dulles Intl Airport to London Gatwick Airport is Icelandair. Our recent data shows that you can find tickets from as low as $505 on this airline. This flight start at 23% lower than the current average price 3 months from now.

  • Can I find deals for flights from Dulles Intl to Gatwick that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Gatwick flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Gatwick?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Gatwick.

  • Can I find deals for business class flights from Dulles Intl to Gatwick?

    Yes. Cheapflights offers flight deals from Dulles Intl to Gatwick by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of $363). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of $995). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Borehamwood
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Sutton
Slough

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Dulles Intl to Gatwick

Discover the top airline that operate flights from Dulles Intl to Gatwick. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$505Average$654FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights