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£289+ Cheap flights to Dulles Intl

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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
26 Feb — 5 Mar1
1 adult

Flights to Dulles Intl in 2025

Find the latest flights to Dulles Intl in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 21 February 2025.

Return from

£345

One-way from

£289

Popular in

July

Cheapest in

February

Average price

£499

Good round-trip deal

£538 or less

Good one-way deal

£594 or less
PLAY
  • PLAY
  • 14/5-17/5
  • 2 total stops
  • 21h 50m total
  • London to Washington, D.C.
2/6
  • 2/6
  • 2 total stops
  • 50h 35m total
  • London to Washington, D.C.
Highest demand for flights based on searches. 12% potential increase in price (£64 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Average for return flights in February 2025
Price to beat on a round-trip flight from London to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from London to Washington, D.C. Dulles Intl.

Find flight deals to Dulles Intl Airport

Cheapest flights to Dulles Intl Airport
Explore the most affordable flight options available to Dulles Intl Airport. Find the lowest fares based on data from user searches, with prices last updated on 21 February 2025.

Thu 3/414:50STN - IAD
2 stops34h 09mMultiple Airlines
Mon 7/422:05IAD - STN
2 stops17h 55mMultiple Airlines
Deal found 20/2£406
Thu 3/408:45LTN - IAD
2 stops15h 35mMultiple Airlines
Mon 7/420:30IAD - LTN
2 stops14h 30mMultiple Airlines
Deal found 20/2£414
Tue 22/415:40LGW - IAD
1 stop32h 40mIcelandair
Wed 30/420:30IAD - LGW
1 stop10h 15mIcelandair
Deal found 20/2£424
Fri 28/306:50LGW - IAD
2 stops19h 10mMultiple Airlines
Mon 31/322:20IAD - LGW
2 stops18h 35mMultiple Airlines
Deal found 20/2£428
Mon 17/308:45LHR - IAD
1 stop16h 20mLufthansa
Sat 29/317:32IAD - LHR
2 stops34h 03mLufthansa
Deal found 19/2£433
Thu 24/413:05LHR - IAD
1 stop11h 15mIcelandair
Mon 28/420:30IAD - LHR
1 stop10h 25mIcelandair
Deal found 19/2£461
Wed 2/419:30LHR - IAD
1 stop29h 29mScandinavian Airlines
Tue 15/422:05IAD - LHR
1 stop14h 35mScandinavian Airlines
Deal found 20/2£462
Mon 17/316:30LHR - IAD
Nonstop8h 15mFinnair
Sat 29/306:27IAD - LHR
2 stops22h 48mFinnair
Deal found 20/2£467
Thu 20/313:15LHR - IAD
Nonstop8h 40mVirgin Atlantic
Wed 26/319:45IAD - LHR
Nonstop7h 30mVirgin Atlantic
Deal found 20/2£493
Wed 14/508:00LHR - IAD
1 stop12h 20mTAP AIR PORTUGAL
Sun 18/522:20IAD - LHR
1 stop18h 40mTAP AIR PORTUGAL
Deal found 19/2£500
Sat 1/315:10LHR - IAD
Nonstop8h 40mAir France
Tue 18/319:25IAD - LHR
Nonstop7h 30mAir France
Deal found 20/2£502
Thu 20/306:00LHR - IAD
1 stop13h 35mMultiple Airlines
Wed 26/319:25IAD - LHR
Nonstop7h 15mMultiple Airlines
Deal found 20/2£507

Find flights to Dulles Intl within your budget

Locate flights to Dulles Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 21 February 2025.

Fly from

London

Route

Depart

Return

Price

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 26/3

09:10-16:00

2 stops34h 50m

Washington, D.C. Dulles Intl

Wed 2/4

22:20-21:00

2 stops17h 40m

£393

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 3/4

14:50-19:59

2 stops34h 09m

Washington, D.C. Dulles Intl

Mon 7/4

22:05-21:00

2 stops17h 55m

£406

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Thu 3/4

08:45-19:20

2 stops15h 35m

Washington, D.C. Dulles Intl

Mon 7/4

20:30-16:00

2 stops14h 30m

£414

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 6/3

11:55-18:25

1 stop11h 30m

Washington, D.C. Dulles Intl

Mon 17/3

20:40-10:55

1 stop10h 15m

£429

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 3/5

15:50-09:39

1 stop22h 49m

Washington, D.C. Dulles Intl

Fri 9/5

22:15-10:40

Nonstop7h 25m

£454

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 2/4

19:30-19:59

1 stop29h 29m

Washington, D.C. Dulles Intl

Tue 15/4

22:05-17:40

1 stop14h 35m

£462

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Mon 17/3

16:30-20:45

Nonstop8h 15m

Washington, D.C. Dulles Intl

Sat 29/3

06:27-09:15

2 stops22h 48m

£467

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 20/3

12:15-19:25

1 stop11h 10m

Washington, D.C. Dulles Intl

Wed 26/3

20:40-19:30

1 stop18h 50m

£471

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 20/3

13:15-17:55

Nonstop8h 40m

Washington, D.C. Dulles Intl

Wed 26/3

19:45-07:15

Nonstop7h 30m

£493

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 6/3

13:15-16:55

Nonstop8h 40m

Washington, D.C. Dulles Intl

Mon 17/3

19:45-07:15

Nonstop7h 30m

£502

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 60 results
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Best time to book a flight to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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 to Dulles Intl

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

When is the best time to book a flight to Dulles Intl?

Use this chart to determine the optimal time to book a return flight from London to Dulles Intl. Price data was last updated on 14 February 2025.

Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights to Dulles Intl. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

How long is the flight to Dulles Intl?

On average, a flight from London to Dulles Intl takes 14 hours 49 minutes. Flights to Dulles Intl from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Dulles Intl?

Use this chart to determine the cheapest time to fly return from London to Dulles Intl. Price data was last updated on 2 June 2024.

Users looking for the lowest fares to Dulles Intl should consider flying on Tuesday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday at midday, when prices are usually at their highest.

Weekly flight availability to Dulles Intl

The most flights from London to Dulles Intl are scheduled on a Monday (22 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (17 on average).

What are the cheapest airlines that fly to Dulles Intl?

The cheapest airlines flying from London to Dulles Intl are PLAY, Delta and Icelandair.

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 Dulles Intl 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 Dulles Intl 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 Dulles Intl, 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 21 February 2025.
Get a feel of what it's like to fly with Delta, KLM and Air Transat to Washington, D.C. by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0
Very Good

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Washington Dulles International Airport handles close to 24 million passengers each year. This architecturally beautiful airport is situated 42km (26 miles) from downtown Washington DC and serves a metropolitan area that includes Washington, Baltimore and Northern Virginia.

Washington Dulles International Airport was named after John Foster Dulles who was a former US Secretary of State. The airport is well-connected to Washington and Virginia, it is also connected to more than 125 destinations around the world, making it a popular gateway to the eastern United States.

The airport has a range of shopping options including book shops, fashion, jewellery, gifts, gadgets and music. The duty-free shops at the Washington Dulles International Airport are well-stocked and the amenities are top-class.

The airport serves as a hub for United Airlines, however passengers can book flights to Washington Dulles International Airport on most major international and domestic airlines.

  • Can I find cheaper flights to Dulles Intl if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Dulles Intl on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Dulles Intl?

    Based on reviews from Cheapflights users, PLAY is rated the highest out of the airlines that fly to Dulles Intl.

  • What is the cheapest airport to fly to in Dulles Intl?

    Washington, D.C. Dulles Intl is currently the cheapest airport to fly to in Dulles Intl. One-way flights to Washington, D.C. Dulles Intl typically cost £51, while return flights cost around £96.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around £564, however they can be found for as little as £122.

  • Where does the fastest flight to Dulles Intl depart from?

    For those looking to save time traveling to Dulles Intl, London offers the quickest one-way flight (8 hours 5 minutes).

  • Does Washington, D.C. Dulles Intl have car hire?

    Yes. Those touching down at Washington, D.C. Dulles Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Washington, D.C. Dulles Intl?

    Yes. Washington, D.C. Dulles Intl has hotels nearby for those requiring accommodations. Sleepbox Lounge Iad, Dulles International Airport is the closest property to Washington, D.C. Dulles Intl (0.0 mi away from Washington, D.C. Dulles Intl).

See more FAQs

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Silver Spring
Arlington
Woodbridge
College Park
Laurel
Tysons

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