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Gatwick

$426+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LGW
Jun 11 — Jun 181
Thu 6/11
Thu 6/18
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 May 12, 2026.

This deal was found by Cheapflights users on 5/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:05 pm
IAD
-
LGW
1 stop11h 40m
TAP AIR PORTUGAL
Mon 5/1810:35 am
LGW
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 5/10$803
This oojo deal was found by Cheapflights users on 5/11. 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 8/278:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Sun 9/273:40 pm
LGW
-
IAD
1 stop11h 35m
Icelandair
Deal found 5/11$804
This oojo deal was found by Cheapflights users on 5/8. 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 8/288:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Fri 9/43:40 pm
LGW
-
IAD
1 stop11h 35m
Icelandair
Deal found 5/8$805
This Icelandair deal was found by Cheapflights users on 5/8. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/18:30 pm
IAD
-
LGW
1 stop10h 15m
Icelandair
Sun 9/61:00 pm
LGW
-
IAD
1 stop11h 20m
Icelandair
Deal found 5/8$806
This oojo deal was found by Cheapflights users on 5/10. 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 8/288:30 pm
IAD
-
LGW
1 stop13h 10m
Icelandair
Wed 9/23:40 pm
LGW
-
IAD
1 stop32h 40m
Icelandair
Deal found 5/10$807
This Booking.com deal was found by Cheapflights users on 5/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:05 pm
IAD
-
LGW
1 stop11h 40m
TAP AIR PORTUGAL
Tue 10/69:15 pm
LGW
-
IAD
2 stops28h 20m
TAP AIR PORTUGAL
Deal found 5/10$808
This Justfly.com deal was found by Cheapflights users on 5/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:35 pm
IAD
-
LGW
1 stop30h 10m
TAP AIR PORTUGAL
Thu 10/82:50 pm
LGW
-
IAD
1 stop28h 35m
TAP AIR PORTUGAL
Deal found 5/11$809
This Mytrip deal was found by Cheapflights users on 5/10. 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.
Tue 6/211:30 am
IAD
-
LGW
2 stops15h 25m
Multiple Airlines
Sun 6/79:40 am
LGW
-
IAD
2 stops35h 32m
Multiple Airlines
Deal found 5/10$810
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Tue 7/281:36 pm
IAD
-
LGW
1 stop15h 24m
Multiple Airlines
Thu 8/201:30 pm
LGW
-
IAD
2 stops30h 40m
Multiple Airlines
Deal found 5/10$811
This Mytrip deal was found by Cheapflights users on 5/9. 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 6/13:45 pm
IAD
-
LGW
3 stops35h 10m
Multiple Airlines
Sun 6/79:40 am
LGW
-
IAD
2 stops35h 32m
Multiple Airlines
Deal found 5/9$812
This Mytrip deal was found by Cheapflights users on 5/10. 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.
Tue 6/911:30 am
IAD
-
LGW
2 stops17h 20m
Multiple Airlines
Tue 6/169:40 am
LGW
-
IAD
3 stops34h 23m
Multiple Airlines
Deal found 5/10$813
This Mytrip deal was found by Cheapflights users on 5/7. 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.
Fri 5/2911:30 am
IAD
-
LGW
2 stops17h 20m
Multiple Airlines
Tue 6/29:40 am
LGW
-
IAD
2 stops34h 41m
Multiple Airlines
Deal found 5/7$814

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 May 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$803
(Mytrip)

One-way from

$427
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$786
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. 26% potential increase in price ($255 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($68 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 12, 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 8/10

8:28 am-9:40 am

2 stops20h 12m

London Gatwick

Thu 8/20

10:25 am-7:35 pm

1 stop14h 10m

$870

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 7/30

9:45 pm-4:00 pm

1 stop13h 15m

London Gatwick

Wed 9/9

5:00 pm-11:51 am

2 stops23h 51m

$925

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 9/30

9:45 pm-4:00 pm

1 stop13h 15m

London Gatwick

Mon 10/5

10:25 am-9:11 am

2 stops27h 46m

$925

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 6/8

8:30 pm-11:45 am

1 stop10h 15m

London Gatwick

Mon 6/15

3:40 pm-7:20 pm

1 stop32h 40m

$984

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 8/19

8:28 am-9:25 am

2 stops19h 57m

London Gatwick

Sun 8/23

10:25 am-7:35 pm

1 stop14h 10m

$995

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 7/21

8:27 am-9:25 am

2 stops19h 58m

London Gatwick

Tue 7/28

10:35 am-7:35 pm

1 stop14h 00m

$1,005

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 7/26

9:45 pm-4:00 pm

1 stop13h 15m

London Gatwick

Wed 8/5

5:00 pm-11:49 am

2 stops23h 49m

$1,010

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 9/9

5:00 pm-5:55 pm

2 stops19h 55m

London Gatwick

Mon 9/14

2:30 pm-3:30 pm

2 stops30h 00m

$1,048
Quickest round-trip

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 8/13

6:15 pm-9:25 am

1 stop10h 10m

London Gatwick

Tue 8/18

10:35 am-7:35 pm

1 stop14h 00m

$1,050

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 6/4

8:30 pm-2:40 pm

1 stop13h 10m

London Gatwick

Mon 6/15

3:40 pm-7:20 pm

1 stop32h 40m

$1,106

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of $426). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of $1,440). 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.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to London Gatwick Airport?

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 May 12, 2026.
Peruse reviews from past customers who have flown with TAP AIR PORTUGAL and 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.
TAP AIR PORTUGAL
7.2
Good
2,250 reviews

Overall

7.2

Food

6.2

Entertainment

6.3

Comfort

7.1

Crew

7.8

Boarding

7.0

Reviews

1 / 20
10.0
Excellent

Melanie,May 2026

ORD - LIS

Seat was comfortable. Food was really good. Service from crew was great. They were really nice and solicitous.
TAP AIR PORTUGAL
7.2
Good
2,250 reviews
TAP AIR PORTUGAL
7.2
Good
2,250 reviews

Overall

7.2

Food

6.2

Entertainment

6.3

Comfort

7.1

Crew

7.8

Boarding

7.0

Reviews

1 / 20
10.0
Excellent

Melanie,May 2026

ORD - LIS

Seat was comfortable. Food was really good. Service from crew was great. They were really nice and solicitous.
Icelandair
7.0
Good
653 reviews
TAP AIR PORTUGAL
7.2
Good
2,250 reviews

Overall

7.2

Food

6.2

Entertainment

6.3

Comfort

7.1

Crew

7.8

Boarding

7.0

Reviews

1 / 20
10.0
Excellent

Melanie,May 2026

ORD - LIS

Seat was comfortable. Food was really good. Service from crew was great. They were really nice and solicitous.

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 15m. TAP AIR PORTUGAL provides one of the quickest options available for as low as $806. Airlines will cover a distance of 3683 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying 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 TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as $309 on this airline. An additional option worth looking into is Icelandair, starting at $505. These flights start at 55% 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of $426). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of $1,440). 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
Winchester
Croydon
Gatwick
Southend-on-Sea
Dorking
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Borehamwood
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Dulles Intl to Gatwick

Discover the top 2 airlines 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 May 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$309Average$447FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$505Average$610FlexibilityNo cancel feeOn-time76%

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