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£373+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

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 30 October 2025.

Return from

£409

One-way from

£374

Popular in

July

Cheapest in

February

Average price

£563

Good round-trip deal

£523 or less

Good one-way deal

£463 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 22/1-25/1
  • 2 total stops
  • 47h 30m total
  • London to Washington, D.C.
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21/12
  • 21/12
  • 2 total stops
  • 45h 55m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£70 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 October 2025
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 30 October 2025.

Fri 21/1114:00LGW - IAD
1 stop22h 45mMultiple Airlines
Sat 6/1205:45IAD - LGW
2 stops23h 20mMultiple Airlines
Deal found 26/10£408
Fri 12/1210:40LGW - IAD
1 stop15h 20mTAP AIR PORTUGAL
Sat 24/117:30IAD - LGW
1 stop11h 20mTAP AIR PORTUGAL
Deal found 27/10£409
Wed 3/1208:15LHR - IAD
1 stop17h 45mTAP AIR PORTUGAL
Fri 12/1222:30IAD - LHR
1 stop18h 05mTAP AIR PORTUGAL
Deal found 28/10£411
Fri 12/1212:25LHR - IAD
1 stop13h 35mTAP AIR PORTUGAL
Sat 24/117:30IAD - LHR
1 stop12h 55mTAP AIR PORTUGAL
Deal found 27/10£412
Mon 29/1208:50LTN - IAD
1 stop15h 40mMultiple Airlines
Sun 4/121:00IAD - LTN
1 stop9h 45mMultiple Airlines
Deal found 28/10£412
Thu 4/1221:20STN - IAD
2 stops26h 10mMultiple Airlines
Fri 12/1219:40IAD - STN
2 stops19h 55mMultiple Airlines
Deal found 27/10£412
Thu 20/1114:00LGW - IAD
1 stop22h 50mMultiple Airlines
Tue 2/1217:30IAD - LGW
2 stops18h 25mMultiple Airlines
Deal found 28/10£414
Thu 4/1206:00LHR - IAD
1 stop14h 15mTAP AIR PORTUGAL
Fri 12/1222:30IAD - LHR
1 stop19h 10mTAP AIR PORTUGAL
Deal found 27/10£424
Sat 15/1121:10STN - IAD
2 stops24h 30mMultiple Airlines
Sun 23/1120:30IAD - STN
2 stops18h 35mMultiple Airlines
Deal found 27/10£424
Tue 11/1121:40LGW - IAD
1 stop22h 55mMultiple Airlines
Sun 16/1121:00IAD - LGW
1 stop10h 45mMultiple Airlines
Deal found 27/10£426
Tue 11/1121:45STN - IAD
1 stop26h 45mMultiple Airlines
Sun 16/1117:05IAD - STN
1 stop9h 45mMultiple Airlines
Deal found 27/10£426
Tue 2/1206:00LHR - IAD
1 stop13h 35mTAP AIR PORTUGAL
Tue 9/1217:30IAD - LHR
1 stop23h 05mTAP AIR PORTUGAL
Deal found 29/10£427

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 30 October 2025.
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.

STN - IAD

STNIAD

London Stansted

Thu 22/1

06:30-18:30

2 stops17h 00m

Washington, D.C. Dulles Intl

Sun 25/1

19:40-20:05

2 stops19h 25m

£414

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 29/12

06:30-19:30

1 stop18h 00m

Washington, D.C. Dulles Intl

Sun 4/1

21:00-20:05

1 stop18h 05m

£429

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 12/12

05:55-21:00

2 stops20h 05m

Washington, D.C. Dulles Intl

Tue 13/1

17:30-23:50

2 stops25h 20m

£444

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 4/12

20:05-16:05

2 stops25h 00m

Washington, D.C. Dulles Intl

Wed 10/12

18:05-19:40

2 stops20h 35m

£454

LondonWashington, D.C.

LTN - IAD

LTNIAD

London Luton

Tue 11/11

09:00-15:35

1 stop11h 35m

Washington, D.C. Dulles Intl

Sun 16/11

17:05-11:45

1 stop13h 40m

£461

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Tue 23/12

06:00-19:30

1 stop18h 30m

Washington, D.C. Dulles Intl

Sun 4/1

17:05-11:05

1 stop13h 00m

£464

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 4/12

10:10-21:00

2 stops39h 50m

Washington, D.C. Dulles Intl

Wed 10/12

22:30-15:05

1 stop11h 35m

£488

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sat 22/11

11:55-18:30

1 stop11h 35m

Washington, D.C. Dulles Intl

Wed 10/12

19:40-10:55

1 stop10h 15m

£492

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 25/11

11:55-18:30

1 stop11h 35m

Washington, D.C. Dulles Intl

Wed 10/12

19:40-10:55

1 stop10h 15m

£492

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 20/11

11:55-18:30

1 stop11h 35m

Washington, D.C. Dulles Intl

Wed 17/12

19:40-10:55

1 stop10h 15m

£492

Flights are sorted by cheapest return flights first.

Deals found on 27/10

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 24 October 2025.

Booking 70 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 11 hours 50 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 16 December 2024.

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

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 £440
British Airways
British Airways
From £447
Aer Lingus
Aer Lingus
From £393
Lufthansa
Lufthansa
From £371

What are the cheapest airlines that fly to Dulles Intl?

The cheapest airlines flying from London to Dulles Intl are Delta, TAP AIR PORTUGAL 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 30 October 2025.
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
670 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Overall

7.5

Crew

8.1

Food

6.9

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
670 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Overall

7.5

Crew

8.1

Food

6.9

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
1,361 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Overall

7.5

Crew

8.1

Food

6.9

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
562 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Overall

7.5

Crew

8.1

Food

6.9

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
7,541 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Overall

7.5

Crew

8.1

Food

6.9

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
7,485 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Entertainment

7.5

Comfort

7.3

Boarding

7.7

Overall

7.5

Crew

8.1

Food

6.9

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 £77, while return flights cost around £141.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around £412, however they can be found for as little as £141.

  • 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
Hanover
Oxon Hill
Woodbridge
Arlington
Alexandria
College Park
Tysons

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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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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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