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£401+ 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 19/6. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
27 Jun — 4 Jul1
1 adult
1 adult, Economy, 0 bags

Flights to Dulles Intl in 2026

Enter your travel dates to find the best prices.

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 28 May 2026.

Fri 9/1013:05
LHR
-
IAD
1 stop11h 15m
Icelandair
Sat 17/1020:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 25/5£475
Tue 3/1116:35
LGW
-
IAD
1 stop33h 00m
TAP AIR PORTUGAL
Sat 14/1117:25
IAD
-
LGW
1 stop11h 25m
TAP AIR PORTUGAL
Deal found 24/5£475
Thu 15/1021:25
LHR
-
IAD
1 stop26h 55m
Icelandair
Sun 18/1023:20
IAD
-
LHR
1 stop16h 00m
Icelandair
Deal found 24/5£475
Tue 9/621:25
LHR
-
IAD
1 stop26h 55m
Icelandair
Mon 1/319:40
IAD
-
LHR
1 stop10h 10m
Icelandair
Deal found 24/5£476
Wed 7/1015:40
LGW
-
IAD
1 stop11h 35m
Icelandair
Sat 17/1020:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 25/5£476
Tue 6/1013:05
LHR
-
IAD
1 stop11h 15m
Icelandair
Sun 18/1023:20
IAD
-
LHR
1 stop16h 00m
Icelandair
Deal found 25/5£477
Thu 8/1015:40
LGW
-
IAD
1 stop32h 40m
Icelandair
Fri 16/1020:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 25/5£478
Mon 5/1021:25
LHR
-
IAD
1 stop26h 55m
Icelandair
Tue 20/1020:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 25/5£478
Thu 17/910:35
LGW
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Mon 28/922:35
IAD
-
LGW
1 stop30h 10m
TAP AIR PORTUGAL
Deal found 25/5£478
Wed 26/821:25
LHR
-
IAD
1 stop26h 55m
Icelandair
Fri 11/920:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 25/5£479
Tue 25/813:00
LGW
-
IAD
1 stop11h 20m
Icelandair
Mon 21/920:30
IAD
-
LGW
1 stop13h 10m
Icelandair
Deal found 24/5£479
Thu 24/913:05
LHR
-
IAD
1 stop11h 15m
Icelandair
Tue 29/920:30
IAD
-
LHR
1 stop10h 25m
Icelandair
Deal found 25/5£480

Find flight deals to Dulles Intl Airport

Find the latest flights to Dulles Intl in 2026, 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 28 May 2026.

Return from

£475

One-way from

£401

Popular in

July

Cheapest in

February

Average price

£560

Good round-trip deal

£553 or less

Good one-way deal

£621 or less
Icelandair
  • Icelandair
  • 9/10-16/10
  • 2 total stops
  • 21h 40m total
  • London to Washington, D.C.
Search Deals
19/6
  • 19/6
  • 2 total stops
  • 17h 31m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for return flights in May 2026
Search Deals
Price to beat on a round-trip flight from London to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from London to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
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 28 May 2026.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sat 29/8

15:40-22:15

1 stop11h 35m

Washington, D.C. Dulles Intl

Thu 10/9

20:30-14:40

1 stop13h 10m

£502

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Mon 8/6

08:15-15:45

1 stop12h 30m

Washington, D.C. Dulles Intl

Mon 15/6

21:00-12:45

1 stop10h 45m

£517

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Sun 21/6

09:00-15:45

1 stop11h 45m

Washington, D.C. Dulles Intl

Sun 28/6

21:00-15:25

1 stop13h 25m

£531

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 29/10

12:05-16:40

Nonstop8h 35m

Washington, D.C. Dulles Intl

Thu 5/11

18:20-06:40

Nonstop7h 20m

£537

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 17/9

12:15-15:30

Nonstop8h 15m

Washington, D.C. Dulles Intl

Sun 27/9

22:05-10:40

Nonstop7h 35m

£537

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 7/10

07:05-17:00

2 stops14h 55m

Washington, D.C. Dulles Intl

Mon 12/10

20:20-19:55

2 stops18h 35m

£546

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 25/8

19:50-17:00

2 stops26h 10m

Washington, D.C. Dulles Intl

Mon 21/9

20:20-18:30

1 stop17h 10m

£557

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Mon 24/8

16:40-20:00

Nonstop8h 20m

Washington, D.C. Dulles Intl

Tue 22/9

18:35-06:55

Nonstop7h 20m

£578

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 25/8

16:40-20:00

Nonstop8h 20m

Washington, D.C. Dulles Intl

Sun 20/9

18:35-06:55

Nonstop7h 20m

£578

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Wed 26/8

06:20-19:25

2 stops18h 05m

Washington, D.C. Dulles Intl

Mon 21/9

17:15-09:15

1 stop11h 00m

£598

Flights are sorted by cheapest return flights first.

Deals found on 26/5

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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.

Cheapflights Insights

Everything you need to know about your flight to Washington, D.C. Dulles Intl Airport

How long is the flight to Dulles Intl?

On average, a flight from London to Dulles Intl takes 11 hours 41 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.

Weekly flight availability to Dulles Intl

The most flights from London to Dulles Intl are scheduled on a Wednesday (28 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (21 on average).

What are the most popular airlines that fly to Dulles Intl?

The most popular airlines flying from London to Dulles Intl are Virgin Atlantic, British Airways and Lufthansa.

Virgin Atlantic
Virgin Atlantic
From £407
British Airways
British Airways
From £401
Aer Lingus
Aer Lingus
From £364
Lufthansa
Lufthansa
From £365

What are the cheapest airlines that fly to Dulles Intl?

The cheapest airlines flying from London to Dulles Intl are Delta, Icelandair and TAP AIR PORTUGAL.

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).

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

Booking 52 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.

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 28 May 2026.
Check out reviews from past customers who have flown Virgin Atlantic,United Airlines, andIcelandair to the United States 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.
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Entertainment

7.5

Food

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
689 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Entertainment

7.5

Food

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
United Airlines
7.4
Good
9,763 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Entertainment

7.5

Food

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Icelandair
7.0
Good
661 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Entertainment

7.5

Food

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Lufthansa
6.8
Okay
8,032 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Entertainment

7.5

Food

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,008 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Crew

8.1

Comfort

7.3

Overall

7.5

Entertainment

7.5

Food

6.9

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

FAQs about flying to Dulles Intl

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, Delta 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 £22, while return flights cost around £244.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around £244, however they can be found for as little as £244.

  • 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 0 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
Hanover
Oxon Hill
Gaithersburg
Woodbridge
Alexandria
Sterling

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Not ready to book yet? You can track prices for flights to Dulles Intl on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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