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Cheap flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport from £349

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 17/5. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — IAD
28 Jan — 4 Feb1
1 adult

The best prices from London Gatwick to Washington, D.C. Dulles Intl are usually found in February or April, booked 31 days in advance, depart on a Tuesday or Thursday and return on a Monday

Cheap flight deals from Gatwick to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Dulles Intl (IAD). 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 23 January 2025.

Round-trip from

£450

One-way from

£349

Popular in

July

Cheapest in

February

Average price

£525
8/3-15/3
  • 8/3-15/3
  • 4 total stops
  • 59h 55m total
  • London to Washington, D.C.
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17/5
  • 17/5
  • 3 total stops
  • 31h 35m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£169 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2025
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Find flight deals from Gatwick to Dulles Intl

Cheapest flights from Gatwick to Dulles Intl
Explore the most affordable flight options available from Gatwick to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 January 2025.

Sat 8/309:10LGW - IAD
2 stops35h 30mMultiple Airlines
Sat 15/318:10IAD - LGW
2 stops24h 25mMultiple Airlines
Deal found 22/1£450
Tue 29/416:25LGW - IAD
1 stop33h 25mTAP AIR PORTUGAL
Sun 4/522:20IAD - LGW
1 stop11h 50mTAP AIR PORTUGAL
Deal found 22/1£451
Wed 29/111:55LGW - IAD
1 stop11h 30mIcelandair
Thu 6/219:40IAD - LGW
1 stop10h 15mIcelandair
Deal found 22/1£454
Tue 18/318:45LGW - IAD
1 stop24h 45mSWISS
Tue 25/321:45IAD - LGW
1 stop16h 05mSWISS
Deal found 22/1£473
Tue 25/315:45LGW - IAD
1 stop31h 55mRoyal Air Maroc
Fri 28/321:40IAD - LGW
1 stop13h 05mRoyal Air Maroc
Deal found 21/1£544
Mon 3/212:00LGW - IAD
2 stops16h 58mNorse Atlantic UK
Mon 10/214:22IAD - LGW
1 stop14h 38mNorse Atlantic UK
Deal found 22/1£606
Fri 21/316:55LGW - IAD
1 stop24h 20mTurkish Airlines
Wed 2/412:35IAD - LGW
1 stop22h 40mTurkish Airlines
Deal found 22/1£619
Tue 10/612:00LGW - IAD
1 stop11h 28mVirgin Atlantic
Thu 10/712:35IAD - LGW
2 stops16h 25mVirgin Atlantic
Deal found 22/1£634

Find flights from Gatwick to Dulles Intl within your budget

Customise your flight search to find flights from Gatwick to Dulles Intl 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 858,174 searches. Data last updated 23 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sat 8/3

09:10-15:40

2 stops35h 30m

Washington, D.C. Dulles Intl

Sat 15/3

18:10-22:35

2 stops24h 25m

£450

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 29/4

16:25-20:50

1 stop33h 25m

Washington, D.C. Dulles Intl

Sun 4/5

22:20-15:10

1 stop11h 50m

£451

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 5/3

11:55-18:25

1 stop11h 30m

Washington, D.C. Dulles Intl

Sun 9/3

20:40-10:55

1 stop10h 15m

£460

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 18/3

18:45-15:30

1 stop24h 45m

Washington, D.C. Dulles Intl

Tue 25/3

21:45-17:50

1 stop16h 05m

£473

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 25/3

15:45-19:40

1 stop31h 55m

Washington, D.C. Dulles Intl

Fri 28/3

21:40-14:45

1 stop13h 05m

£544

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Mon 3/2

12:00-23:58

2 stops16h 58m

Washington, D.C. Dulles Intl

Mon 10/2

14:22-10:00

1 stop14h 38m

£606

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Fri 21/3

16:55-13:15

1 stop24h 20m

Washington, D.C. Dulles Intl

Wed 2/4

12:35-16:15

1 stop22h 40m

£619

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 10/6

12:00-18:28

1 stop11h 28m

Washington, D.C. Dulles Intl

Thu 10/7

12:35-10:00

2 stops16h 25m

£634

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sat 17/5

16:30-19:05

3 stops31h 35m

£349

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sat 7/6

15:40-19:20

1 stop32h 40m

£411

Flights are sorted by cheapest return flights first.

Deals found on 22/1

Showing 1-10 of 12 results
1
2

Best time to book a flight from Gatwick to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Gatwick with our price prediction graph.
Estimated return 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.

Travel insights for flights from Gatwick to Dulles Intl

Get recent, data-driven insights about flights from Gatwick to Dulles Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a return flight from Gatwick to Dulles Intl. Price data was last updated on 17 January 2025.

To ensure you get the cheapest price possible for a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 31 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport (average of £599). Flying from London Gatwick Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £944). 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.

What is the cheapest time of day to fly from LGW to IAD?

Find hourly flight availability from Gatwick to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 January 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 27% on flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport by exploring options for tickets at midday.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated 23 January 2025.
Get a feel of what it's like to fly with Turkish Airlines, Icelandair and TAP AIR PORTUGAL from London to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,598 reviews
Check prices

Overall

7.5

Entertainment

6.8

Crew

8.2

Boarding

7.6

Comfort

7.4

Food

7.0

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

SWISS
7.5
Good
1,598 reviews
SWISS
7.5
Good
1,598 reviews
Check prices

Overall

7.5

Entertainment

6.8

Crew

8.2

Boarding

7.6

Comfort

7.4

Food

7.0

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

Turkish Airlines
7.3
Good
3,926 reviews
SWISS
7.5
Good
1,598 reviews
Check prices

Overall

7.5

Entertainment

6.8

Crew

8.2

Boarding

7.6

Comfort

7.4

Food

7.0

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

TAP AIR PORTUGAL
7.2
Good
1,869 reviews
SWISS
7.5
Good
1,598 reviews
Check prices

Overall

7.5

Entertainment

6.8

Crew

8.2

Boarding

7.6

Comfort

7.4

Food

7.0

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

Icelandair
7.1
Good
502 reviews
SWISS
7.5
Good
1,598 reviews
Check prices

Overall

7.5

Entertainment

6.8

Crew

8.2

Boarding

7.6

Comfort

7.4

Food

7.0

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

Norse Atlantic UK
6.9
Okay
42 reviews
SWISS
7.5
Good
1,598 reviews
Check prices

Overall

7.5

Entertainment

6.8

Crew

8.2

Boarding

7.6

Comfort

7.4

Food

7.0

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

Related info for your journey

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

  • What are the cheapest airlines flying from London Gatwick Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Our cheapest airline available from London Gatwick Airport to Washington, D.C. Dulles Intl Airport is TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as £451 on this airline. Additional options worth looking into are Icelandair and SWISS, starting at £460 and £473 round-trip. TAP AIR PORTUGAL is 26% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from London Gatwick Airport to Washington, D.C. Dulles Intl Airport one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at £411. TAP AIR PORTUGAL flights start at £465 while deals on Royal Air Maroc start at £490 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Gatwick to Dulles Intl 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 London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport (average of £599). Flying from London Gatwick Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £944). 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

Travelling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Silver Spring
Arlington
Woodbridge
College Park
Laurel
Tysons

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Top 3 airlines flying from Gatwick to Dulles Intl

Discover the top 3 airlines that operate flights from Gatwick to Dulles Intl. 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 858,174 searches. Data last updated 23 January 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£378Average£546FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£382Average£655FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£541Average£696FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Gatwick to Dulles Intl?

When you search for this flight from Gatwick to Dulles Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Gatwick to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Gatwick to Dulles Intl.

Can Cheapflights find flights from Gatwick to Dulles Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Gatwick to Dulles Intl with no change fees.

Can Cheapflights notify me if prices for flights from Gatwick to Dulles Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Dulles Intl from Gatwick today and book when prices fit your budget.

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