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£406+ 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
13 Jul — 20 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 13 June 2026.

Tue 7/708:30
LHR
-
IAD
2 stops17h 49m
Air Canada
Wed 9/916:00
IAD
-
LHR
1 stop12h 35m
Air Canada
Deal found 10/6£485
Wed 12/809:15
LCY
-
IAD
1 stop12h 30m
SWISS
Wed 19/820:20
IAD
-
LCY
1 stop11h 15m
SWISS
Deal found 8/6£485
Thu 23/707:00
LHR
-
IAD
1 stop12h 15m
Multiple Airlines
Mon 10/822:15
IAD
-
LHR
Nonstop7h 25m
Multiple Airlines
Deal found 11/6£486
Mon 6/708:10
LCY
-
IAD
1 stop12h 20m
Multiple Airlines
Mon 13/722:20
IAD
-
LCY
2 stops14h 35m
Multiple Airlines
Deal found 8/6£486
Wed 17/612:00
LHR
-
IAD
1 stop12h 33m
British Airways
Sat 27/620:22
IAD
-
LHR
1 stop10h 48m
British Airways
Deal found 9/6£487
Thu 19/1116:00
LGW
-
IAD
1 stop33h 35m
TAP AIR PORTUGAL
Fri 4/1222:30
IAD
-
LGW
1 stop12h 15m
TAP AIR PORTUGAL
Deal found 10/6£487
Thu 30/709:15
LCY
-
IAD
1 stop12h 30m
SWISS
Mon 10/820:20
IAD
-
LCY
1 stop11h 15m
SWISS
Deal found 11/6£487
Tue 11/808:45
LHR
-
IAD
1 stop13h 00m
United Airlines
Tue 18/822:15
IAD
-
LHR
Nonstop7h 25m
United Airlines
Deal found 8/6£488
Fri 3/720:40
LGW
-
IAD
1 stop27h 15m
British Airways
Sat 11/720:30
IAD
-
LGW
1 stop33h 20m
British Airways
Deal found 9/6£488
Fri 28/809:15
LCY
-
IAD
1 stop12h 30m
SWISS
Sun 6/920:20
IAD
-
LCY
1 stop11h 15m
SWISS
Deal found 9/6£488
Fri 19/609:15
LHR
-
IAD
1 stop15h 18m
British Airways
Sun 28/609:20
IAD
-
LHR
1 stop18h 45m
British Airways
Deal found 11/6£488
Mon 22/620:40
LGW
-
IAD
1 stop23h 50m
Iberia
Mon 29/617:00
IAD
-
LGW
1 stop12h 50m
Iberia
Deal found 12/6£488

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 13 June 2026.

Return from

£485

One-way from

£406

Popular in

June

Cheapest in

February

Average price

£592

Good round-trip deal

£575 or less

Good one-way deal

£616 or less
Air Canada
  • Air Canada
  • 7/7-11/9
  • 3 total stops
  • 32h 39m total
  • London to Washington, D.C.
Search Deals
21/9
  • 21/9
  • 2 total stops
  • 15h 40m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£57 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 June 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 13 June 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.

LHR - IAD

LHRIAD

London Heathrow

Fri 26/6

12:00-19:33

1 stop12h 33m

Washington, D.C. Dulles Intl

Thu 30/7

20:22-12:10

1 stop10h 48m

£488

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 11/8

08:45-16:45

1 stop13h 00m

Washington, D.C. Dulles Intl

Sat 22/8

06:15-20:40

1 stop9h 25m

£489

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 5/9

06:30-15:35

1 stop14h 05m

Washington, D.C. Dulles Intl

Mon 7/9

22:55-11:20

Nonstop7h 25m

£517

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 1/7

19:15-15:30

1 stop25h 15m

Washington, D.C. Dulles Intl

Tue 14/7

17:40-12:35

1 stop13h 55m

£520

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Tue 25/8

19:15-15:30

1 stop25h 15m

Washington, D.C. Dulles Intl

Tue 22/9

17:45-12:35

1 stop13h 50m

£523

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 26/8

19:15-15:30

1 stop25h 15m

Washington, D.C. Dulles Intl

Mon 21/9

17:45-12:35

1 stop13h 50m

£523
Fastest return journey

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 6/10

17:55-21:05

Nonstop8h 10m

Washington, D.C. Dulles Intl

Sat 17/10

22:55-11:20

Nonstop7h 25m

£525

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 8/8

07:45-23:19

1 stop20h 34m

Washington, D.C. Dulles Intl

Tue 18/8

18:30-06:55

Nonstop7h 25m

£526

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 6/10

17:55-21:05

Nonstop8h 10m

Washington, D.C. Dulles Intl

Thu 15/10

22:55-11:20

Nonstop7h 25m

£535

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 6/10

17:55-21:05

Nonstop8h 10m

Washington, D.C. Dulles Intl

Fri 16/10

22:55-11:20

Nonstop7h 25m

£535

Flights are sorted by cheapest return flights first.

Deals found on 9/6

Showing 1-10 of 60 resultsSorted by cheapest first
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2
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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.

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 13 hours 25 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 (27 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 £366

What are the cheapest airlines that fly to Dulles Intl?

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

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 81 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 13 June 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

Boarding

7.7

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Crew

8.1

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

Boarding

7.7

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Crew

8.1

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
9,813 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Boarding

7.7

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Crew

8.1

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
674 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Boarding

7.7

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Crew

8.1

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
8,056 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Boarding

7.7

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Crew

8.1

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
8,047 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Boarding

7.7

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Crew

8.1

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, Icelandair 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 £39, while return flights cost around £89.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around £1,213, however they can be found for as little as £89.

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

    For those looking to save time traveling to Dulles Intl, Edinburgh Turnhouse 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
Hanover
Oxon Hill
Gaithersburg
Woodbridge
Alexandria
Sterling

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