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£86+ 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 14/8. 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
16 lug — 23 lug1
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 11 luglio 2025.

Cheapest airline

Air Canada

Good round-trip deal

£58 or less

Good one-way deal

£65 or less
On average, Air Canada currently has the cheapest one-way flight from Washington, D.C. Dulles Intl (avg. price of £453).
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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 11 luglio 2025.

ven 10/1020:30IAD - GLA
1 stop11h 55mIcelandair
dom 19/1014:20GLA - IAD
1 stop10h 00mIcelandair
Deal found 9/7£375
sab 16/817:20IAD - GLA
1 stop9h 45mMultiple Airlines
mer 20/808:25GLA - IAD
1 stop12h 25mMultiple Airlines
Deal found 9/7£395
mar 19/817:00IAD - BHX
2 stops19h 25mMultiple Airlines
mar 26/808:30BHX - IAD
2 stops35h 50mMultiple Airlines
Deal found 9/7£400
lun 18/822:20IAD - LGW
2 stops17h 05mTAP AIR PORTUGAL
mar 26/810:35LGW - IAD
1 stop15h 15mTAP AIR PORTUGAL
Deal found 11/7£400
lun 25/822:20IAD - LTN
2 stops18h 05mMultiple Airlines
lun 1/909:00LTN - IAD
2 stops35h 20mMultiple Airlines
Deal found 10/7£400
mer 17/917:50IAD - LHR
Nonstop7h 30mDelta
mar 23/908:40LHR - IAD
1 stop11h 55mDelta
Deal found 10/7£400
mar 2/917:00IAD - STN
2 stops16h 20mMultiple Airlines
mar 9/910:45STN - IAD
2 stops33h 35mMultiple Airlines
Deal found 11/7£401
lun 22/920:45IAD - LCY
1 stop10h 45mSWISS
mar 30/909:25LCY - IAD
1 stop11h 50mSWISS
Deal found 10/7£401
mer 8/1017:50IAD - LHR
Nonstop7h 25mBritish Airways
lun 13/1017:00LHR - IAD
Nonstop8h 15mBritish Airways
Deal found 11/7£401
dom 31/818:04IAD - LHR
1 stop15h 21mIberia
lun 13/1020:00LHR - IAD
1 stop24h 00mIberia
Deal found 10/7£402
lun 25/817:45IAD - LGW
2 stops22h 10mMultiple Airlines
lun 1/908:40LGW - IAD
2 stops35h 40mMultiple Airlines
Deal found 10/7£403
mar 16/920:45IAD - LGW
1 stop16h 05mSWISS
lun 22/918:35LGW - IAD
1 stop26h 40mSWISS
Deal found 10/7£404

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 11 luglio 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

ven 10/10

20:30-13:25

1 stop11h 55m

Glasgow Intl

dom 19/10

14:20-19:20

1 stop10h 00m

£375

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

sab 16/8

17:20-08:05

1 stop9h 45m

Glasgow Intl

mer 20/8

08:25-15:50

1 stop12h 25m

£395

Washington, D.C.Birmingham

IAD - BHX

IADBHX

Washington, D.C. Dulles Intl

mar 19/8

17:00-17:25

2 stops19h 25m

Birmingham

mar 26/8

08:30-15:20

2 stops35h 50m

£400

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

lun 18/8

22:20-20:25

2 stops17h 05m

London Gatwick

mar 26/8

10:35-20:50

1 stop15h 15m

£400

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mer 17/9

17:50-06:20

Nonstop7h 30m

London Heathrow

mar 23/9

08:40-15:35

1 stop11h 55m

£400

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

lun 25/8

22:20-21:25

2 stops18h 05m

London Luton

lun 1/9

09:00-15:20

2 stops35h 20m

£400

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

lun 22/9

20:45-12:30

1 stop10h 45m

London City

mer 1/10

09:25-16:15

1 stop11h 50m

£401

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mer 8/10

17:50-06:15

Nonstop7h 25m

London Heathrow

lun 13/10

17:00-20:15

Nonstop8h 15m

£401

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

dom 31/8

18:04-12:45

1 stop13h 41m

London Heathrow

mer 15/10

20:00-15:00

1 stop24h 00m

£402

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

mar 16/9

20:45-17:50

1 stop16h 05m

London Gatwick

lun 22/9

18:35-16:15

1 stop26h 40m

£404

Flights are sorted by cheapest return flights first.

Deals found on 9/7

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 27 June 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 £358). Flying from Washington, D.C. Dulles Intl Airport in June will prove the most costly (average of £556). 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: British Airways, Virgin Atlantic, Iberia, United Airlines, Lufthansa. These airlines fly to the following popular destinations: London.

British Airways
British Airways
From £549
Virgin Atlantic
Virgin Atlantic
From £567
Frontier
Frontier
From £38
United Airlines
United Airlines
From £170

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 (392 flights per day), Chicago (374 flights per day) and Atlanta (287 flights per day).

London
London
From £357
Dublin
Dublin
From £362
Istanbul
Istanbul
From £379
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From £81

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 Las Vegas Harry Reid Intl, with prices starting at £58. Explore other affordable destinations below.

Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From £79
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From £81
Denver Intl
Denver Intl
From £88
Detroit
Detroit
From £89

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.
Get a feel of what it's like to fly with Delta, SWISS, andUnited Airlines from Washington, D.C. Dulles Intl Airport by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,951 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,655 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,848 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,419 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Browse thousands of different options on Cheapflights for your next trip

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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 11 luglio 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 11 luglio 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, Athens, Bengaluru. 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 £58 to Las Vegas (prices may vary depending on the airline and departure time). On average, users have booked flights for £504 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 Chicago Midway (£28), United Airlines flights from Washington, D.C. Dulles Intl Airport to Accra Kotoka (£125), and Air Canada flights from Washington, D.C. Dulles Intl Airport to Toronto Pearson Intl (£128).

  • 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 Jacksonville from £361
    Washington, D.C. Dulles Intl to Orlando Airport from £809
    Washington, D.C. Dulles Intl to Mexico City from £912
    Washington, D.C. Dulles Intl to Paris Charles de Gaulle Airport from £1,168

  • 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 £379 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 £310 round trip
    Travel from Washington, D.C. to Glasgow from £375 round trip
    Travel from Washington, D.C. to Manchester from £385 round trip
    Travel from Washington, D.C. to Edinburgh from £406 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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