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$740+ Cheap flights from Dulles Intl (IAD) to Sydney, NS (YQY)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YQY
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Dulles Intl to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Sydney (YQY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$740
(Air Canada)
From Washington, D.C. Dulles Intl to Sydney
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Find flight deals from Dulles Intl to Sydney

Cheapest flights from Dulles Intl to Sydney
Explore the most affordable flight options available from Dulles Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Air Canada deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:30 amIAD - YQY
2 stops17h 05mAir Canada
Wed 10/224:35 pmYQY - IAD
1 stop5h 30mAir Canada
Deal found 9/11$740
This Air Canada deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/39:45 amIAD - YQY
2 stops24h 47mAir Canada
Fri 11/75:30 amYQY - IAD
2 stops11h 21mAir Canada
Deal found 9/11$742
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/239:00 amIAD - YQY
1 stop25h 32mAir Canada
Fri 11/285:30 amYQY - IAD
1 stop6h 53mAir Canada
Deal found 9/10$759
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/412:40 pmIAD - YQY
2 stops8h 49mAir Canada
Sun 11/95:30 amYQY - IAD
2 stops11h 21mAir Canada
Deal found 9/10$808
This Air Canada deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/115:37 pmIAD - YQY
1 stop21h 11mMultiple Airlines
Sat 10/185:15 amYQY - IAD
1 stop11h 55mMultiple Airlines
Deal found 9/11$879

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Sydney that are best for you.

Fly from

Dulles Intl

Fly to

Sydney

Route

Depart

Return

Price

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Mon 11/3

9:45 am-11:32 am

2 stops24h 47m

Sydney

Fri 11/7

5:30 am-3:51 pm

2 stops11h 21m

$742

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Sun 11/23

9:00 am-11:32 am

1 stop25h 32m

Sydney

Fri 11/28

12:20 pm-8:54 pm

2 stops9h 34m

$742

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Sat 10/18

5:22 pm-12:35 am

1 stop6h 13m

Sydney

Wed 10/22

4:35 pm-9:05 pm

1 stop5h 30m

$750

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Sat 10/18

6:30 am-12:35 am

2 stops17h 05m

Sydney

Wed 10/22

4:35 pm-12:21 am

2 stops8h 46m

$750

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Tue 11/4

12:40 pm-10:29 pm

2 stops8h 49m

Sydney

Sun 11/9

5:30 am-3:51 pm

2 stops11h 21m

$808

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Sat 10/11

5:37 pm-3:48 pm

1 stop21h 11m

Sydney

Sat 10/18

5:15 am-4:10 pm

1 stop11h 55m

$879

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Best time to book a flight from Dulles Intl to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Dulles Intl with our price prediction graph.
Estimated round-trip 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.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sydney from Washington, D.C. Dulles Intl?

    Sydney (YQY), located 7.0 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Sydney. 0 airlines have flights to Sydney from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Sydney should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Sydney, Nova Scotia?

    Air Canada can get you from Washington, D.C. Dulles Intl Airport to Sydney, Nova Scotia in just under 24h 47m. Your travel time can differ by up to . Washington, D.C. Dulles Intl Airport and Sydney, Nova Scotia are separated by a distance of 1012 mi.

  • Can I find deals for flights from Dulles Intl to Sydney that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Sydney.

  • Can I find deals for business class flights from Dulles Intl to Sydney?

    Yes. Cheapflights offers flight deals from Dulles Intl to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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