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Gatwick

$276+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LGW
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
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 July 29, 2026.

This Norse deal was found by Cheapflights users on 7/26. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:32 pm
IAD
-
LGW
1 stop15h 28m
Multiple Airlines
Tue 8/252:00 pm
LGW
-
IAD
1 stop25h 07m
Multiple Airlines
Deal found 7/26$621
This Mytrip deal was found by Cheapflights users on 7/25. 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 9/1410:35 pm
IAD
-
LGW
2 stops20h 20m
Multiple Airlines
Tue 9/226:10 pm
LGW
-
IAD
2 stops26h 00m
Multiple Airlines
Deal found 7/25$622
This Mytrip deal was found by Cheapflights users on 7/27. 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.
Thu 11/128:30 pm
IAD
-
LGW
3 stops30h 30m
Multiple Airlines
Tue 11/175:40 pm
LGW
-
IAD
2 stops28h 35m
Multiple Airlines
Deal found 7/27$623
This Mytrip deal was found by Cheapflights users on 7/26. 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 10/65:05 pm
IAD
-
LGW
2 stops24h 45m
Multiple Airlines
Mon 10/129:15 am
LGW
-
IAD
2 stops34h 55m
Multiple Airlines
Deal found 7/26$624
This Mytrip deal was found by Cheapflights users on 7/24. 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.
Thu 10/18:20 pm
IAD
-
LGW
3 stops34h 55m
Multiple Airlines
Tue 10/67:55 pm
LGW
-
IAD
2 stops26h 05m
Multiple Airlines
Deal found 7/24$625
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:30 pm
IAD
-
LGW
1 stop11h 35m
TAP AIR PORTUGAL
Wed 11/1110:40 am
LGW
-
IAD
1 stop14h 55m
TAP AIR PORTUGAL
Deal found 7/29$626
This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:35 pm
IAD
-
LGW
1 stop12h 00m
TAP AIR PORTUGAL
Wed 9/3010:35 am
LGW
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 7/28$627
This Mytrip deal was found by Cheapflights users on 7/27. 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 9/1410:35 pm
IAD
-
LGW
2 stops20h 20m
Multiple Airlines
Mon 9/215:00 pm
LGW
-
IAD
2 stops32h 35m
Multiple Airlines
Deal found 7/27$628
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Thu 8/131:32 pm
IAD
-
LGW
1 stop15h 28m
Multiple Airlines
Wed 9/22:00 pm
LGW
-
IAD
1 stop31h 07m
Multiple Airlines
Deal found 7/24$629
This Mytrip deal was found by Cheapflights users on 7/26. 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 9/98:20 pm
IAD
-
LGW
3 stops33h 00m
Multiple Airlines
Wed 9/1611:00 am
LGW
-
IAD
3 stops35h 00m
Multiple Airlines
Deal found 7/26$631
This Sembo deal was found by Cheapflights users on 7/29. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:35 pm
IAD
-
LGW
1 stop12h 00m
TAP AIR PORTUGAL
Tue 9/294:25 pm
LGW
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 7/29$634
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Wed 10/217:00 am
IAD
-
LGW
2 stops22h 00m
Multiple Airlines
Tue 10/2710:10 am
LGW
-
IAD
1 stop36h 59m
Multiple Airlines
Deal found 7/25$635

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 July 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$621
(Norse)

One-way from

$276
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$732
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. 23% potential increase in price ($218 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($53 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 29, 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

Tue 11/10

5:25 pm-9:25 am

2 stops35h 00m

London Gatwick

Mon 11/16

4:35 pm-2:45 pm

1 stop27h 10m

$739

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 10/7

5:45 pm-11:20 am

2 stops36h 35m

London Gatwick

Mon 10/19

4:25 pm-3:10 pm

1 stop27h 45m

$739

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 1/25

5:25 pm-9:50 am

1 stop11h 25m

London Gatwick

Sat 1/30

4:35 pm-8:35 pm

1 stop33h 00m

$755

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 9/21

10:27 am-10:00 am

1 stop18h 33m

London Gatwick

Fri 9/25

2:00 pm-10:17 am

1 stop25h 17m

$789

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 9/9

10:35 pm-8:30 pm

2 stops16h 55m

London Gatwick

Tue 9/15

4:25 pm-3:10 pm

1 stop27h 45m

$799

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 11/5

5:25 pm-8:35 pm

2 stops22h 10m

London Gatwick

Wed 11/11

4:35 pm-3:15 pm

1 stop27h 40m

$812

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 10/30

11:30 pm-8:40 pm

2 stops41h 10m

London Gatwick

Sun 11/8

10:40 am-8:35 pm

1 stop14h 55m

$812
Quickest round-trip

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 10/1

8:30 pm-2:40 pm

1 stop13h 10m

London Gatwick

Wed 10/7

3:40 pm-10:15 pm

1 stop11h 35m

$826

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 9/29

5:05 pm-9:45 am

1 stop11h 40m

London Gatwick

Sun 10/11

9:15 pm-3:10 pm

2 stops22h 55m

$890

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 8/17

11:10 am-10:00 am

1 stop17h 50m

London Gatwick

Fri 8/21

2:00 pm-4:07 pm

1 stop31h 07m

$927

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 22 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 July.
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 $1,293). 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 July 29, 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
2,352 reviews

Crew

7.8

Food

6.3

Overall

7.2

Comfort

7.1

Boarding

7.0

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

IAD - LIS

In BC I ordered the special “meat” meal and it was good. Usually the food in BC is not very good. In smaller planes the space in BC is a bit cramped. The Passport Control in Lisboa is terrible! A disaster! We will not be flying through Lisboa again. Because of Passport Control we missed our flight and had to make an expensive re-booking and overnight stay! Nevertheless, until the day of the flight, I received emails telling me that my ongoing flight from Lisboa to Valencia had been changed. Even though the whole itinerary had been cancelled due to the missed flight! We had had several TAP flights before, but we probably will not in the future.
TAP AIR PORTUGAL
7.2
Good
2,352 reviews
TAP AIR PORTUGAL
7.2
Good
2,352 reviews

Crew

7.8

Food

6.3

Overall

7.2

Comfort

7.1

Boarding

7.0

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

IAD - LIS

In BC I ordered the special “meat” meal and it was good. Usually the food in BC is not very good. In smaller planes the space in BC is a bit cramped. The Passport Control in Lisboa is terrible! A disaster! We will not be flying through Lisboa again. Because of Passport Control we missed our flight and had to make an expensive re-booking and overnight stay! Nevertheless, until the day of the flight, I received emails telling me that my ongoing flight from Lisboa to Valencia had been changed. Even though the whole itinerary had been cancelled due to the missed flight! We had had several TAP flights before, but we probably will not in the future.
Icelandair
7.0
Good
716 reviews
TAP AIR PORTUGAL
7.2
Good
2,352 reviews

Crew

7.8

Food

6.3

Overall

7.2

Comfort

7.1

Boarding

7.0

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

IAD - LIS

In BC I ordered the special “meat” meal and it was good. Usually the food in BC is not very good. In smaller planes the space in BC is a bit cramped. The Passport Control in Lisboa is terrible! A disaster! We will not be flying through Lisboa again. Because of Passport Control we missed our flight and had to make an expensive re-booking and overnight stay! Nevertheless, until the day of the flight, I received emails telling me that my ongoing flight from Lisboa to Valencia had been changed. Even though the whole itinerary had been cancelled due to the missed flight! We had had several TAP flights before, but we probably will not in the future.

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 35h. TAP AIR PORTUGAL provides one of the quickest options available for as low as $739. Airlines will cover a distance of 3683 mi.

  • 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 $494. These flights start at 57% 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 $1,293). 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
Dorking
Hounslow
Winchester
Croydon
Gatwick
Wembley
Harrow
Eastleigh
Southend-on-Sea
Watford
Dartford
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
Harlow

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 July 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$309Average$447FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$494Average$610FlexibilityNo cancel feeOn-time76%

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