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$950+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
— IAD
30 Mar — 6 Apr1
1 adult

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 647,157 searches and data was last updated on 25 March 2025.

Return from

$1,568

One-way from

$950

Popular in

December

Cheapest in

February

Average price

$1,770
Air Canada
  • Air Canada
  • 26/8-23/9
  • 3 total stops
  • 66h 50m total
  • Sydney to Washington, D.C.
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5/6
  • 5/6
  • 2 total stops
  • 29h 16m total
  • Sydney to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($420 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($95 potential savings vs. average return price).
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Average for return flights in March 2025
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Find flight deals to Dulles Intl Airport

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 25 March 2025.

Tue 26/809:20SYD - IAD
1 stop35h 25mAir Canada
Tue 23/909:55IAD - SYD
2 stops31h 25mAir Canada
Deal found 24/3$1,568
Wed 28/517:45SYD - IAD
1 stop36h 29mMultiple Airlines
Sun 8/618:46IAD - SYD
1 stop22h 09mMultiple Airlines
Deal found 23/3$1,783
Wed 26/311:20SYD - IAD
2 stops23h 22mUnited Airlines
Mon 31/317:40IAD - SYD
2 stops23h 20mUnited Airlines
Deal found 24/3$1,826
Thu 27/321:25SYD - IAD
1 stop23h 15mQantas Airways
Thu 3/417:20IAD - SYD
1 stop22h 35mQantas Airways
Deal found 24/3$1,837
Mon 21/409:25SYD - IAD
2 stops28h 15mDelta
Mon 28/410:16IAD - SYD
2 stops30h 19mDelta
Deal found 24/3$1,840
Mon 31/312:50SYD - IAD
1 stop36h 15mANA
Mon 12/111:05IAD - SYD
1 stop41h 10mANA
Deal found 23/3$2,268
Sun 13/410:20SYD - IAD
1 stop32h 55mVirgin Australia
Sat 3/522:05IAD - SYD
1 stop42h 55mVirgin Australia
Deal found 24/3$2,327
Thu 8/521:10SYD - IAD
1 stop49h 30mEmirates
Thu 15/510:55IAD - SYD
1 stop45h 10mEmirates
Deal found 24/3$3,247
Sat 26/412:50SYD - IAD
3 stops65h 10mAir Tahiti Nui
Fri 2/517:38IAD - SYD
3 stops31h 32mAir Tahiti Nui
Deal found 24/3$3,679
Thu 29/518:05SYD - IAD
3 stops52h 50mEthiopian Air
Sun 8/610:55IAD - SYD
2 stops53h 00mEthiopian Air
Deal found 23/3$5,750
Tue 1/707:55SYD - IAD
1 stop41h 20mKorean Air
Tue 22/713:30IAD - SYD
1 stop26h 50mKorean Air
Deal found 24/3$8,638
Thu 8/515:00SYD - IAD
2 stops38h 15mSWISS
Thu 15/520:45IAD - SYD
2 stops56h 30mSWISS
Deal found 24/3$19,858

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 647,157 searches and data was last updated on 25 March 2025.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 26/8

09:20-06:45

1 stop35h 25m

Washington, D.C. Dulles Intl

Tue 23/9

09:55-07:20

2 stops31h 25m

$1,568

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 28/5

17:45-05:55

2 stops26h 10m

Washington, D.C. Dulles Intl

Mon 9/6

18:46-06:55

1 stop22h 09m

$1,783

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Wed 30/4

09:30-18:49

2 stops23h 19m

Washington, D.C. Dulles Intl

Mon 5/5

15:36-07:00

2 stops25h 24m

$1,826

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 21/4

09:25-23:40

2 stops28h 15m

Washington, D.C. Dulles Intl

Mon 28/4

10:16-06:35

2 stops30h 19m

$1,840

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Fri 30/5

10:25-16:17

1 stop19h 52m

Washington, D.C. Dulles Intl

Mon 9/6

18:46-06:55

1 stop22h 09m

$1,858

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sun 13/4

10:20-05:15

1 stop32h 55m

Washington, D.C. Dulles Intl

Sat 3/5

22:05-07:00

1 stop42h 55m

$2,327

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 8/5

21:10-08:40

1 stop49h 30m

Washington, D.C. Dulles Intl

Thu 15/5

10:55-22:05

1 stop45h 10m

$3,247

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 10/4

11:50-10:05

1 stop36h 15m

Washington, D.C. Dulles Intl

Mon 14/4

12:55-09:25

2 stops30h 30m

$3,612

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 26/4

12:50-16:00

3 stops65h 10m

Washington, D.C. Dulles Intl

Fri 2/5

17:38-15:10

3 stops31h 32m

$3,679

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 29/5

18:05-08:55

3 stops52h 50m

Washington, D.C. Dulles Intl

Sun 8/6

10:55-05:55

2 stops53h 00m

$5,750

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 26 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 Sydney to Dulles Intl. Price data was last updated on 21 March 2025.

To ensure you get the cheapest price possible for a flight to Dulles Intl, you should look to book at least 20 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

How long is the flight to Dulles Intl?

On average, a flight from Sydney to Dulles Intl takes 21 hours 10 minutes. Flights to Dulles Intl from other popular cities in Australia 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 Sydney 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 Tuesday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday evenings, when prices are usually at their highest.

What are the most popular airlines that fly to Dulles Intl?

The most popular airlines flying from Sydney to Dulles Intl are United Airlines, Air Canada and Virgin Australia.

United Airlines

United Airlines

From $1,182

Air Canada

Air Canada

From $847

Virgin Australia

Virgin Australia

From $1,235

Qantas Airways

Qantas Airways

From $860

What are the cheapest airlines that fly to Dulles Intl?

The cheapest airlines flying from Sydney to Dulles Intl are American Airlines, Air Canada and Qantas Airways.

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 mm 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 25 March 2025.
Read reviews from past customers who have flown Air Tahiti Nui, Korean Air and Japan Airlines to Washington, D.C.. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Entertainment

7.2

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very Good
61 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Entertainment

7.2

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Korean Air
8.4
Very Good
1,047 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Entertainment

7.2

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Japan Airlines
8.3
Very Good
1,440 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Entertainment

7.2

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
ANA
8.3
Very Good
826 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Entertainment

7.2

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Asiana Airlines
8.2
Very Good
441 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Crew

9.1

Entertainment

7.2

Boarding

8.7

Comfort

8.0

Overall

8.7

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

FAQs about flying to Dulles Intl

  • 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, American Airlines 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 $173, while return flights cost around $663.

  • How much is a return flight to Dulles Intl?

    A return flight to Dulles Intl will typically cost around $417, however they can be found for as little as $417.

  • Where does the fastest flight to Dulles Intl depart from?

    For those looking to save time traveling to Dulles Intl, Sydney Kingsford Smith offers the quickest one-way flight (21 hours 10 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 km away from Washington, D.C. Dulles Intl).

See more FAQs

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Deals for Dulles Intl flights 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 to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Dulles Intl.

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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.

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

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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