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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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Dulles Intl in 2026

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 16 January 2026.

Return from

£399

One-way from

£401

Popular in

July

Cheapest in

February

Average price

£474

Good round-trip deal

£447 or less

Good one-way deal

£542 or less
Icelandair
  • Icelandair
  • 25/2-3/3
  • 2 total stops
  • 30h 15m total
  • London to Washington, D.C.
Search Deals
Lufthansa
  • Lufthansa
  • 11/4
  • 1 total stop
  • 15h 25m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£80 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for return flights in January 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.
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Find flight deals to Dulles Intl Airport

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 16 January 2026.

Tue 21/406:00
LHR
-
IAD
1 stop13h 35m
Austrian Airlines
Thu 30/418:25
IAD
-
LHR
Nonstop7h 30m
Austrian Airlines
Deal found 15/1£412
Tue 20/106:00
LHR
-
IAD
1 stop13h 35m
TAP AIR PORTUGAL
Sat 24/117:30
IAD
-
LHR
1 stop12h 55m
TAP AIR PORTUGAL
Deal found 14/1£413
Tue 24/216:35
LGW
-
IAD
1 stop33h 25m
TAP AIR PORTUGAL
Sun 8/323:30
IAD
-
LGW
1 stop30h 20m
TAP AIR PORTUGAL
Deal found 14/1£413
Mon 2/217:45
LCY
-
IAD
1 stop27h 55m
Multiple Airlines
Sun 8/218:00
IAD
-
LCY
1 stop18h 40m
Multiple Airlines
Deal found 14/1£413
Sun 1/306:00
LHR
-
IAD
1 stop14h 05m
SWISS
Sat 7/317:15
IAD
-
LHR
1 stop11h 30m
SWISS
Deal found 15/1£414
Fri 13/309:20
LCY
-
IAD
1 stop12h 20m
SWISS
Sun 15/317:25
IAD
-
LCY
1 stop11h 15m
SWISS
Deal found 14/1£414
Sun 15/318:40
LGW
-
IAD
1 stop24h 40m
SWISS
Sun 22/321:30
IAD
-
LGW
1 stop16h 20m
SWISS
Deal found 14/1£415
Sat 7/206:50
LHR
-
IAD
2 stops14h 34m
Multiple Airlines
Tue 24/209:45
IAD
-
LHR
2 stops15h 45m
Multiple Airlines
Deal found 14/1£415
Sun 1/310:40
LGW
-
IAD
1 stop33h 35m
TAP AIR PORTUGAL
Sun 8/323:30
IAD
-
LGW
1 stop30h 20m
TAP AIR PORTUGAL
Deal found 15/1£415
Tue 20/109:00
LHR
-
IAD
1 stop12h 40m
SWISS
Tue 17/321:30
IAD
-
LHR
1 stop11h 30m
SWISS
Deal found 14/1£416
Fri 4/909:25
LGW
-
IAD
1 stop12h 20m
SWISS
Wed 9/920:20
IAD
-
LGW
1 stop16h 30m
SWISS
Deal found 15/1£416
Tue 7/408:45
LHR
-
IAD
1 stop13h 00m
United Airlines
Sun 19/406:00
IAD
-
LHR
1 stop9h 40m
United Airlines
Deal found 15/1£417

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

Fly from

London

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 29/1

08:50-15:35

1 stop11h 45m

Washington, D.C. Dulles Intl

Sun 15/2

18:20-06:30

Nonstop7h 10m

£416

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 6/2

08:50-15:35

1 stop11h 45m

Washington, D.C. Dulles Intl

Thu 19/2

18:20-06:30

Nonstop7h 10m

£416

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 7/4

08:45-16:45

1 stop13h 00m

Washington, D.C. Dulles Intl

Sun 19/4

06:00-20:40

1 stop9h 40m

£417

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Mon 2/2

12:05-15:35

Nonstop8h 30m

Washington, D.C. Dulles Intl

Wed 18/2

22:15-10:50

Nonstop7h 35m

£419

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 5/2

16:20-20:15

Nonstop8h 55m

Washington, D.C. Dulles Intl

Mon 9/2

22:15-10:50

Nonstop7h 35m

£425

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sun 1/3

16:20-20:15

Nonstop8h 55m

Washington, D.C. Dulles Intl

Sun 8/3

23:15-10:50

Nonstop7h 35m

£426

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 19/3

12:05-16:35

Nonstop8h 30m

Washington, D.C. Dulles Intl

Sun 29/3

18:25-06:55

Nonstop7h 30m

£427

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 6/2

16:20-20:15

Nonstop8h 55m

Washington, D.C. Dulles Intl

Thu 19/2

18:20-06:40

Nonstop7h 20m

£427

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 19/3

12:05-16:35

Nonstop8h 30m

Washington, D.C. Dulles Intl

Mon 30/3

18:25-06:55

Nonstop7h 30m

£427

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 9/7

07:25-19:25

1 stop17h 00m

Washington, D.C. Dulles Intl

Mon 20/7

20:20-16:25

1 stop15h 05m

£428

Flights are sorted by cheapest return flights first.

Deals found on 15/1

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.

Cheapflights Insights

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

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 9 January 2026.

Booking 80 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 12 hours 5 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 (26 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 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 £428
British Airways
British Airways
From £425
Aer Lingus
Aer Lingus
From £378
Lufthansa
Lufthansa
From £366

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).

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 16 January 2026.
Check out reviews from past customers who have flown Virgin Atlantic, Aer Lingus, 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
678 reviews
Check prices

Food

6.9

Entertainment

7.6

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
678 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Food

6.9

Entertainment

7.6

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Aer Lingus
7.2
Good
1,435 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Food

6.9

Entertainment

7.6

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Icelandair
7.1
Good
596 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Food

6.9

Entertainment

7.6

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Lufthansa
6.8
Okay
7,718 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Food

6.9

Entertainment

7.6

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,680 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Food

6.9

Entertainment

7.6

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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 £73, while return flights cost around £236.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around £243, however they can be found for as little as £236.

  • 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
Woodbridge
Arlington
Alexandria
College Park

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How does Cheapflights help users find flights to Dulles Intl?

When you search for this flight 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 best flight for you.

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Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to Dulles Intl for you. Better yet — we are completely free to use.

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Yes, we can. To see specific flights to Dulles Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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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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