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Gatwick

$327+ Cheap flights from Dulles Intl (IAD) to Gatwick (LGW)

IAD — LGW
Oct 12 — Oct 191
Mon 10/12
Mon 10/19
1 adult, Economy
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Cheap flight deals from Dulles Intl to Gatwick

Cheapest flights from Dulles Intl to Gatwick

Tue 10/138:30 pm -
2 stops20h 05m
Tue 10/204:50 pm -
3 stops34h 25m
Deal found 9/11$635
Fri 10/28:55 pm -
1 stop16h 25m
Tue 10/68:50 am -
1 stop11h 55m
Deal found 9/9$682
Tue 9/228:20 pm -
1 stop16h 30m
Tue 9/299:25 am -
1 stop12h 20m
Deal found 9/11$683
Sun 9/208:55 pm -
1 stop10h 50m
Tue 9/298:50 am -
1 stop11h 55m
Deal found 9/11$684
Thu 10/225:45 pm -
2 stops24h 20m
Sun 11/18:15 am -
2 stops36h 00m
Deal found 9/9$685
Sun 11/15:15 pm -
1 stop17h 55m
Sun 11/88:25 am -
1 stop12h 20m
Deal found 9/9$687
Wed 10/289:50 pm -
1 stop17h 05m
Sun 11/18:25 am -
1 stop12h 20m
Deal found 9/10$689
Fri 9/188:55 pm -
1 stop16h 25m
Tue 9/229:40 am -
1 stop14h 55m
Deal found 9/8$690
Tue 10/138:30 pm -
1 stop13h 10m
Wed 10/2811:55 am -
1 stop11h 35m
Deal found 9/8$691
Sat 9/265:15 pm -
1 stop10h 00m
Tue 9/298:50 am -
1 stop11h 55m
Deal found 9/12$692

Find flight deals from Dulles Intl to Gatwick

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$635
(Mytrip)

One-way from

$327
(Expedia)

Popular in

June

Cheapest in

February

Average price

$1,429
Provider with most accurate pricing for Washington, D.C. Dulles Intl-London Gatwick flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-London Gatwick flights.
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From Washington, D.C. Dulles Intl to London Gatwick
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One-way flight from Washington, D.C. Dulles Intl to London Gatwick
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Highest demand for flights based on searches. 20% potential increase in price ($209 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($65 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
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
Quickest round-trip

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Tue 12/15

5:50 pm-10:50 am

1 stop12h 00m

London Gatwick

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$353

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Sat 12/12

6:20 pm-3:45 pm

2 stops16h 25m

London Gatwick

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$384

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Sun 10/25

11:12 am-8:15 am

1 stop17h 03m

London Gatwick

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$404

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Sun 10/25

11:30 pm-8:35 pm

2 stops17h 05m

London Gatwick

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$456

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Tue 10/20

5:05 pm-8:25 pm

2 stops22h 20m

London Gatwick

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$457

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Wed 10/28

8:13 am-9:00 am

2 stops20h 47m

London Gatwick

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$468

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Sat 3/6

5:25 pm-8:40 pm

2 stops22h 15m

London Gatwick

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$477

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Fri 3/5

10:30 pm-8:40 pm

2 stops41h 10m

London Gatwick

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$477

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Fri 11/27

10:30 pm-8:20 am

2 stops28h 50m

London Gatwick

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$477

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LGW London Gatwick

IADLGW

Washington, D.C. Dulles Intl

Fri 10/2

12:25 pm-4:25 pm

2 stops23h 00m

London Gatwick

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$624

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/7

Showing 1-10 of 24 resultsSorted by cheapest first
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Compare providers for flights from Dulles Intl to Gatwick

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 September.
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

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 $1,499). 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

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
2,386 reviews

Crew

7.8

Overall

7.2

Entertainment

6.4

Comfort

7.2

Food

6.3

Boarding

7.0

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
2,386 reviews
TAP AIR PORTUGAL
7.2
Good
2,386 reviews

Crew

7.8

Overall

7.2

Entertainment

6.4

Comfort

7.2

Food

6.3

Boarding

7.0

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
6.9
Okay
741 reviews
TAP AIR PORTUGAL
7.2
Good
2,386 reviews

Crew

7.8

Overall

7.2

Entertainment

6.4

Comfort

7.2

Food

6.3

Boarding

7.0

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

  • 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. Virgin Atlantic provides one of the quickest options available for as low as $744. 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 61% 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 $1,499). 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
Gatwick
Hounslow
Harrow
Wembley
Southend-on-Sea
Basingstoke
Watford
Dartford
Winchester
Croydon
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
Harlow

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Dulles Intl to Gatwick

AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$309Average$447FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$505Average$610FlexibilityNo cancel feeOn-time76%

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