£375+ Cheap flights to Dulles Intl

— IAD
29 Nov — 6 Dec1
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

Mon 9/1111:55 -
1 stop11h 35m
Thu 12/1119:40 -
1 stop10h 15m
Deal found 27/10£405
Mon 9/1111:55 -
1 stop11h 35m
Sun 22/1119:40 -
1 stop10h 15m
Deal found 29/10£407
Tue 1/1220:35 -
1 stop26h 55m
Mon 28/1219:40 -
1 stop10h 10m
Deal found 29/10£408
Fri 20/1111:55 -
1 stop11h 35m
Tue 15/1219:40 -
1 stop10h 15m
Deal found 27/10£411
Thu 24/1220:35 -
1 stop26h 55m
Tue 29/1219:40 -
1 stop10h 10m
Deal found 26/10£412
Wed 2/1208:15 -
1 stop17h 15m
Fri 4/1222:30 -
1 stop14h 00m
Deal found 25/10£412
Fri 6/1111:55 -
1 stop11h 35m
Sun 15/1119:40 -
1 stop10h 15m
Deal found 27/10£412
Fri 25/1212:15 -
1 stop11h 15m
Fri 29/119:40 -
1 stop10h 10m
Deal found 28/10£413
Mon 23/1116:35 -
1 stop27h 05m
Sun 6/1222:30 -
1 stop12h 15m
Deal found 29/10£413
Thu 3/1212:15 -
1 stop11h 15m
Thu 10/1219:40 -
1 stop18h 50m
Deal found 27/10£414
Tue 8/1212:15 -
1 stop11h 15m
Mon 14/1219:40 -
1 stop10h 10m
Deal found 28/10£414
Wed 18/1110:40 -
1 stop14h 50m
Wed 2/1222:30 -
1 stop11h 35m
Deal found 29/10£414

Find flight deals to Dulles Intl Airport

Return from

£404

One-way from

£375

Popular in

June

Cheapest in

February

Average price

£501

Good round-trip deal

£511 or less

Good one-way deal

£434 or less
Icelandair
  • Icelandair
  • 27/2-6/3
  • 2 total stops
  • 21h 25m total
  • London to Washington, D.C.
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 24/11-31/12
  • 1 total stop
  • 13h 40m total
  • London to Washington, D.C.
Highest demand for flights based on searches. 9% potential increase in price (£53 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Average for return flights in October 2026
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.

Cheapflights Fare Finder

 
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 London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Sat 24/4

21:25-19:20

1 stop26h 55m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£376

LondonWashington, D.C.

LHR London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Wed 2/12

06:00-20:30

1 stop19h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£394

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Sat 24/4

16:30-15:10

1 stop27h 40m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£397

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Thu 10/12

16:00-20:30

1 stop33h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£397

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Sat 5/12

16:35-20:35

1 stop33h 00m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£397

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Thu 24/12

10:35-21:11

1 stop15h 36m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£400

LondonWashington, D.C.

STN London Stansted - IAD Washington, D.C. Dulles Intl

STNIAD

London Stansted

Mon 26/4

06:00-15:30

1 stop14h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£409

LondonWashington, D.C.

STN London Stansted - IAD Washington, D.C. Dulles Intl

STNIAD

London Stansted

Fri 27/11

11:15-11:45

2 stops29h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£420

LondonWashington, D.C.

LHR London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Sat 27/2

12:15-18:30

1 stop11h 15m

Washington, D.C. Dulles Intl

Sat 1/5

20:30-20:20

1 stop18h 50m

£425

LondonWashington, D.C.

LHR London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Wed 3/3

12:15-18:30

1 stop11h 15m

Washington, D.C. Dulles Intl

Sat 1/5

20:30-20:20

1 stop18h 50m

£425

Flights are sorted by cheapest return flights first.

Deals found on 25/10

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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

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 7 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.

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 Virgin Atlantic.

Rainfall in Dulles Intl 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

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 47 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

Check out reviews from past customers who have flown Virgin Atlantic,Aer Lingus, andUnited Airlines 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.

Overall

7.5

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

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

Overall

7.5

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

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

Overall

7.5

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

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

Overall

7.5

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

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

Overall

7.5

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

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

Overall

7.5

Crew

8.1

Boarding

7.7

Entertainment

7.5

Food

6.9

Comfort

7.3

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, Virgin Atlantic 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 £152, while return flights cost around £245.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around £246, however they can be found for as little as £245.

  • 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
Alexandria
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Glen Burnie
Springfield
Sterling

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