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£108+ Cheap flights from Washington, D.C. Dulles Intl Airport

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IAD — LHR
5 May — 12 May1
1 adult

What to know about flights from Dulles Intl

Discover essential information about flights departing from Dulles Intl, including flight schedules, destinations, airlines operating at the Dulles Intl airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 30 April 2025.

Cheapest airline

Air Canada

Good round-trip deal

£129 or less

Good one-way deal

£63 or less
On average, Air Canada currently has the cheapest one-way flight from Washington, D.C. Dulles Intl (avg. price of £459).
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl.
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Find flights from Dulles Intl

Cheapest flights from Dulles Intl
Explore the most affordable flight options available from Dulles Intl. Find the lowest fares based on data from user searches, with prices last updated on 30 April 2025.

Fri 15/820:30IAD - GLA
1 stop11h 55mIcelandair
Tue 26/814:20GLA - IAD
1 stop10h 00mIcelandair
Deal found 29/4£444
Wed 6/821:20IAD - BHX
1 stop11h 20mDelta
Sun 24/806:00BHX - IAD
1 stop18h 15mDelta
Deal found 29/4£451
Fri 1/822:40IAD - GLA
1 stop16h 40mAmerican Airlines
Sun 31/805:55GLA - IAD
1 stop16h 35mAmerican Airlines
Deal found 29/4£460
Sun 10/822:05IAD - LHR
2 stops18h 30mScandinavian Airlines
Sat 23/817:00LHR - IAD
1 stop31h 59mScandinavian Airlines
Deal found 28/4£460
Wed 6/815:30IAD - MAN
2 stops18h 55mDelta
Sun 24/813:00MAN - IAD
2 stops28h 00mDelta
Deal found 29/4£461
Fri 29/820:30IAD - LGW
1 stop10h 15mIcelandair
Tue 2/915:40LGW - IAD
1 stop11h 30mIcelandair
Deal found 29/4£462
Tue 13/515:52IAD - LHR
1 stop10h 23mLufthansa
Wed 21/509:30LHR - IAD
1 stop11h 20mLufthansa
Deal found 28/4£464
Mon 22/922:20IAD - LGW
1 stop12h 15mTAP AIR PORTUGAL
Sun 28/912:05LGW - IAD
2 stops32h 15mTAP AIR PORTUGAL
Deal found 28/4£465
Fri 29/823:15IAD - LHR
1 stop16h 05mIcelandair
Tue 2/913:05LHR - IAD
1 stop11h 15mIcelandair
Deal found 29/4£465
Thu 7/820:30IAD - MAN
1 stop10h 10mIcelandair
Sun 17/813:05MAN - IAD
1 stop14h 05mIcelandair
Deal found 29/4£465
Tue 26/817:55IAD - LHR
Nonstop7h 20mIberia
Wed 3/906:15LHR - IAD
1 stop13h 45mIberia
Deal found 29/4£468
Tue 19/822:05IAD - MAN
1 stop30h 25mScandinavian Airlines
Tue 26/813:05MAN - IAD
2 stops35h 54mScandinavian Airlines
Deal found 28/4£468

Find flights from Dulles Intl within your budget

Find flights departing from Dulles Intl that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 30 April 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Fri 15/8

20:30-13:25

1 stop11h 55m

Glasgow Intl

Tue 26/8

14:20-19:20

1 stop10h 00m

£444

Washington, D.C.Birmingham

IAD - BHX

IADBHX

Washington, D.C. Dulles Intl

Wed 6/8

21:20-13:40

1 stop11h 20m

Birmingham

Sun 24/8

06:00-19:15

1 stop18h 15m

£451

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Fri 1/8

22:40-20:20

1 stop16h 40m

Glasgow Intl

Sun 31/8

05:55-17:30

1 stop16h 35m

£460

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 10/8

22:05-21:35

2 stops18h 30m

London Heathrow

Sat 23/8

17:00-19:59

1 stop31h 59m

£460

Washington, D.C.Manchester

IAD - MAN

IADMAN

Washington, D.C. Dulles Intl

Wed 6/8

15:30-15:25

2 stops18h 55m

Manchester

Sun 24/8

13:00-12:00

2 stops28h 00m

£461

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 29/8

23:15-14:40

1 stop10h 25m

London Gatwick

Fri 5/9

15:40-22:10

1 stop11h 30m

£462

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 13/5

15:52-07:15

1 stop10h 23m

London Heathrow

Wed 21/5

09:30-15:50

1 stop11h 20m

£464

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 22/9

22:20-15:35

1 stop12h 15m

London Gatwick

Sun 28/9

12:05-15:20

2 stops32h 15m

£465

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 26/8

17:55-06:15

Nonstop7h 20m

London Heathrow

Wed 3/9

06:15-15:00

1 stop13h 45m

£468

Washington, D.C.Manchester

IAD - MAN

IADMAN

Washington, D.C. Dulles Intl

Tue 19/8

22:05-09:30

1 stop30h 25m

Manchester

Tue 26/8

13:05-19:59

2 stops35h 54m

£468

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 60 results
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Best time to book a flight from Dulles Intl

Have a flexible travel schedule? Discover the best time to fly from 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.

Travel insights for flights from Dulles Intl

Get recent, data-driven insights about flights from Dulles Intl including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a return flight from Dulles Intl to Heathrow. Price data was last updated on 25 April 2025.

Booking 45 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport (average of £362). Flying from Washington, D.C. Dulles Intl Airport in June will prove the most costly (average of £569). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Washington, D.C. Dulles Intl Airport?

Many airlines operate round-trip flights from Washington, D.C. Dulles Intl Airport: Virgin Atlantic, British Airways, United Airlines, Iberia, Lufthansa. These airlines fly to the following popular destinations: London.

British Airways

British Airways

From £567

Virgin Atlantic

Virgin Atlantic

From £562

United Airlines

United Airlines

From £170

Frontier

Frontier

From £38

What are popular destinations to fly to from Washington, D.C. Dulles Intl Airport?

If you’re flying from Washington, D.C. Dulles Intl Airport, these routes are more frequently taken by airlines London (388 flights per day), Detroit (334 flights per day) and Atlanta (277 flights per day).

London

London

From £383

Vancouver Intl

Vancouver Intl

From £184

Dublin

Dublin

From £495

Paris

Paris

From £433

What is the cheapest place to fly to from Washington, D.C. Dulles Intl Airport?

The cheapest city to fly to from Washington, D.C. Dulles Intl Airport is Toronto, with prices starting at £50. Explore other affordable destinations below.

Toronto

Toronto

From £68

Montreal

Montreal

From £81

Los Angeles

Los Angeles

From £89

Orlando

Orlando

From £94

Airline reviews for flights from Dulles Intl

Get insights into the airlines that provide service from 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 airline for your flight from Dulles Intl. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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Alternate flight departure points to Dulles Intl

Consider leaving from one of these other departure points that are located a short distance from Dulles Intl. Flight origins were last updated on 30 April 2025.
Flights from Reagan-National

Related info for your journey

Access useful and relevant information related to your journey from Dulles Intl. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 30 April 2025.

  • What are the most popular destinations to fly to from Washington, D.C. Dulles Intl Airport?

    This month, the top selected destinations from Washington, D.C. Dulles Intl Airport are Cairo, Paris Charles de Gaulle Airport, Amsterdam. Throughout the year, Mumbai, Cairo, Ahmedabad are some of the top choices made by users flying from Washington, D.C. Dulles Intl Airport.

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to anywhere?

    Users have flown out of Washington, D.C. Dulles Intl Airport for as low as £50 to Toronto Island Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for £530 to fly from Washington, D.C. Dulles Intl Airport.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to anywhere?

    Over the past few days, we've found that Frontier, United Airlines, and Air Canada have the cheapest prices from Washington, D.C. Dulles Intl Airport. Frontier flights from Washington, D.C. Dulles Intl Airport to Tampa (£28), United Airlines flights from Washington, D.C. Dulles Intl Airport to Accra Kotoka (£127), and Air Canada flights from Washington, D.C. Dulles Intl Airport to Toronto Pearson Intl (£129).

  • What is the cheapest premium economy flight from Washington, D.C. Dulles Intl Airport?

    Here are some of the cheapest offers we have found for the cheapest premium economy flights from Washington, D.C. Dulles Intl Airport.
    Washington, D.C. Dulles Intl to Seattle from £673
    Washington, D.C. Dulles Intl to Orlando Airport from £820
    Washington, D.C. Dulles Intl to Mexico City from £925
    Washington, D.C. Dulles Intl to Paris Charles de Gaulle Airport from £1,183

  • What is the cheapest first class flight from Washington, D.C. Dulles Intl Airport?

    If you’re looking for a cheap first-class flight from Washington, D.C. Dulles Intl Airport, consider Louisville. Prices start at £384 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport?

    At the present moment the cheapest month to fly from Washington, D.C. Dulles Intl Airport is currently January; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Washington, D.C. Dulles Intl Airport?

    Check out the cheapest flights from Washington, D.C. Dulles Intl Airport to embark to:
    Travel from Washington, D.C. to London from £313 round trip
    Travel from Washington, D.C. to Glasgow from £388 round trip
    Travel from Washington, D.C. to Manchester from £403 round trip
    Travel from Washington, D.C. to Edinburgh from £417 round trip

  • How does Cheapflights help users find flights from Dulles Intl?

    Deals for flights from Dulles Intl are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

  • Why should you use Cheapflights to find cheap flight tickets from Dulles Intl?

    Cheapflights helps you find that perfect flight from Dulles Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

  • Can Cheapflights find flights from Dulles Intl with no change fees?

    Certainly. Search results for flights from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

  • Can Cheapflights notify me if prices for flights from Dulles Intl become cheaper?

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

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How does Cheapflights help users find flights from Dulles Intl?

Deals for flights from Dulles Intl are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl?

Cheapflights helps you find that perfect flight from Dulles Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Dulles Intl with no change fees?

Certainly. Search results for flights from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Dulles Intl become cheaper?

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

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