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Gatwick

$329+ 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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LGW
Mar 24 — Mar 311
Tue 3/24
Tue 3/31
1 adult, Economy
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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 February 22, 2026.

This oojo deal was found by Cheapflights users on 2/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Sun 5/31:00 pm
LGW
-
IAD
1 stop11h 20m
Icelandair
Deal found 2/18$559
This oojo deal was found by Cheapflights users on 2/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Fri 8/283:40 pm
LGW
-
IAD
1 stop11h 35m
Icelandair
Deal found 2/18$560
This oojo deal was found by Cheapflights users on 2/19. 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 5/18:30 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Tue 5/123:40 pm
LGW
-
IAD
1 stop32h 40m
Icelandair
Deal found 2/19$561
This FlightHub deal was found by Cheapflights users on 2/21. 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.
Fri 5/18:30 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Thu 5/211:00 pm
LGW
-
IAD
1 stop11h 20m
Icelandair
Deal found 2/21$562
This KAYAK deal was found by Cheapflights users on 2/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:30 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Tue 9/153:40 pm
LGW
-
IAD
1 stop32h 40m
Icelandair
Deal found 2/19$563
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Mon 8/318:30 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Sun 9/63:40 pm
LGW
-
IAD
1 stop11h 35m
Icelandair
Deal found 2/20$564
This FlightHub deal was found by Cheapflights users on 2/18. 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.
Wed 5/138:30 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Wed 5/273:40 pm
LGW
-
IAD
1 stop11h 35m
Icelandair
Deal found 2/18$565
This Super.com deal was found by Cheapflights users on 2/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:40 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Tue 3/311:55 am
LGW
-
IAD
1 stop11h 35m
Icelandair
Deal found 2/19$566
This Mytrip deal was found by Cheapflights users on 2/21. 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 3/98:32 am
IAD
-
LGW
3 stops24h 48m
Multiple Airlines
Tue 3/177:20 am
LGW
-
IAD
2 stops17h 34m
Multiple Airlines
Deal found 2/21$567
This oojo deal was found by Cheapflights users on 2/20. 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.
Thu 4/238:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Thu 4/301:00 pm
LGW
-
IAD
1 stop11h 20m
Icelandair
Deal found 2/20$568
This oojo deal was found by Cheapflights users on 2/20. 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.
Thu 4/238:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Mon 4/273:40 pm
LGW
-
IAD
1 stop32h 40m
Icelandair
Deal found 2/20$569
This oojo deal was found by Cheapflights users on 2/21. 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.
Wed 9/308:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Mon 10/53:40 pm
LGW
-
IAD
1 stop32h 40m
Icelandair
Deal found 2/21$570

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 February 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$559
(oojo)

One-way from

$329
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$918
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. 22% potential increase in price ($205 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 22, 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

Dulles Intl

Fly to

Gatwick

Route

Depart

Return

Price

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 8/16

11:20 pm-11:45 am

1 stop31h 25m

London Gatwick

Sun 8/23

3:40 pm-10:15 pm

1 stop11h 35m

$563

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 3/31

9:45 pm-4:00 pm

1 stop13h 15m

London Gatwick

Thu 4/9

10:25 am-7:35 pm

1 stop14h 10m

$646

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 4/6

8:30 pm-2:40 pm

1 stop13h 10m

London Gatwick

Tue 4/14

3:40 pm-7:20 pm

1 stop32h 40m

$652

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 4/12

9:45 pm-9:40 am

1 stop30h 55m

London Gatwick

Tue 4/21

10:35 am-8:52 pm

2 stops15h 17m

$657

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 4/22

5:00 pm-7:10 pm

2 stops21h 10m

London Gatwick

Sat 4/25

1:00 pm-3:30 pm

2 stops31h 30m

$706

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 4/17

5:00 pm-7:00 pm

2 stops21h 00m

London Gatwick

Tue 4/21

7:40 pm-3:30 pm

2 stops24h 50m

$707

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 4/17

5:00 pm-8:30 am

2 stops34h 30m

London Gatwick

Tue 4/28

2:30 pm-3:30 pm

2 stops30h 00m

$732

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 4/24

5:00 pm-7:00 pm

2 stops21h 00m

London Gatwick

Mon 4/27

7:40 pm-3:30 pm

2 stops24h 50m

$734

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 5/29

11:20 pm-11:45 am

1 stop31h 25m

London Gatwick

Sat 6/6

3:40 pm-7:20 pm

1 stop32h 40m

$750

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 4/15

6:15 pm-9:25 am

1 stop10h 10m

London Gatwick

Wed 4/22

10:25 am-12:42 am

2 stops19h 17m

$769

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 24 results
1
2
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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 February.
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 $343). 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 February 22, 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
617 reviews

Overall

7.1

Comfort

7.0

Boarding

7.2

Crew

8.1

Entertainment

7.0

Food

6.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.
Icelandair
7.1
Good
617 reviews
Icelandair
7.1
Good
617 reviews

Overall

7.1

Comfort

7.0

Boarding

7.2

Crew

8.1

Entertainment

7.0

Food

6.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.

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 13h 15m. Icelandair provides one of the quickest options available for as low as $646. 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 27% 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 $343). 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
Hayes
Borehamwood
Aylesbury
Chipping Norton
Kingston upon Thames
Eastbourne
Sutton
Slough

Browse thousands of different options on Cheapflights for your next trip

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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 February 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$505Average$654FlexibilityNo cancel feeOn-time76%

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