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Cheap flights from Washington, D.C. Dulles Intl Airport to Sydney, NS from C$ 430

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YQY
10 Apr — 17 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dulles Intl to Sydney

Enter your travel dates to find the best prices.

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 11 March 2026.

Tue 4/89:45 a.m.
IAD
-
YQY
1 stop5h 54m
Air Canada
Fri 7/85:00 a.m.
YQY
-
IAD
1 stop11h 24m
Air Canada
Deal found 6/3C$ 969
Wed 16/99:45 a.m.
IAD
-
YQY
1 stop5h 53m
Air Canada
Sun 20/95:05 a.m.
YQY
-
IAD
1 stop12h 07m
Air Canada
Deal found 9/3C$ 971
Mon 21/94:00 p.m.
IAD
-
YQY
1 stop7h 45m
Air Canada
Thu 24/95:05 a.m.
YQY
-
IAD
1 stop12h 07m
Air Canada
Deal found 9/3C$ 976
Sat 19/94:00 p.m.
IAD
-
YQY
1 stop7h 45m
Air Canada
Wed 23/95:05 a.m.
YQY
-
IAD
1 stop12h 07m
Air Canada
Deal found 10/3C$ 978
Wed 17/69:55 a.m.
IAD
-
YQY
1 stop13h 14m
Air Canada
Sun 21/65:00 a.m.
YQY
-
IAD
2 stops11h 01m
Air Canada
Deal found 6/3C$ 988
Fri 18/94:00 p.m.
IAD
-
YQY
1 stop7h 45m
Air Canada
Tue 22/95:05 a.m.
YQY
-
IAD
1 stop11h 20m
Air Canada
Deal found 10/3C$ 990
Tue 28/49:55 a.m.
IAD
-
YQY
1 stop12h 29m
Air Canada
Sat 2/55:00 a.m.
YQY
-
IAD
1 stop11h 29m
Air Canada
Deal found 8/3C$ 1,010
Thu 3/99:55 a.m.
IAD
-
YQY
1 stop13h 17m
Air Canada
Sun 6/95:00 a.m.
YQY
-
IAD
1 stop12h 12m
Air Canada
Deal found 10/3C$ 1,012
Fri 24/49:55 a.m.
IAD
-
YQY
1 stop12h 29m
Air Canada
Fri 1/55:30 a.m.
YQY
-
IAD
1 stop14h 28m
Air Canada
Deal found 10/3C$ 1,025

Find 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 11 March 2026.

Round-trip from

C$ 969

One-way from

C$ 430
Air Canada
  • Air Canada
  • 4/8-7/8
  • 2 total stops
  • 17h 18m total
  • Washington, D.C. to Sydney
Search Deals
Air Canada
  • Air Canada
  • 2/9
  • 1 total stop
  • 5h 54m total
  • Washington, D.C. to Sydney
Search Deals

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 629,999 searches. Data last updated 11 March 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Wed 2/9

9:45 a.m.-4:39 p.m.

1 stop5h 54m

Sydney

Sun 6/9

5:00 a.m.-3:24 p.m.

1 stop11h 24m

C$ 969

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Sun 12/7

9:45 a.m.-4:39 p.m.

1 stop5h 54m

Sydney

Sun 19/7

5:00 a.m.-3:24 p.m.

1 stop11h 24m

C$ 969

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Wed 17/6

9:45 a.m.-4:39 p.m.

1 stop5h 54m

Sydney

Sun 21/6

5:00 a.m.-3:24 p.m.

1 stop11h 24m

C$ 969

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Sat 5/9

9:45 a.m.-4:39 p.m.

1 stop5h 54m

Sydney

Tue 8/9

5:05 a.m.-4:12 p.m.

1 stop12h 07m

C$ 971

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Tue 21/4

9:55 a.m.-11:24 p.m.

1 stop12h 29m

Sydney

Tue 28/4

12:30 p.m.-8:29 p.m.

1 stop8h 59m

C$ 1,010

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Tue 28/4

9:55 a.m.-11:24 p.m.

1 stop12h 29m

Sydney

Sat 2/5

5:00 a.m.-3:29 p.m.

1 stop11h 29m

C$ 1,010

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Thu 3/9

9:55 a.m.-12:12 a.m.

1 stop13h 17m

Sydney

Sun 6/9

5:00 a.m.-4:12 p.m.

1 stop12h 12m

C$ 1,012

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Fri 24/4

9:55 a.m.-11:24 p.m.

1 stop12h 29m

Sydney

Fri 1/5

5:30 a.m.-6:58 p.m.

1 stop14h 28m

C$ 1,025
Cheapest one-way
Quickest one-way

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Wed 2/9

9:45 a.m.-4:39 p.m.

1 stop5h 54m

C$ 430

Washington, D.C.Sydney

IAD - YQY

IADYQY

Washington, D.C. Dulles Intl

Tue 21/4

9:55 a.m.-11:24 p.m.

1 stop12h 29m

C$ 483

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Sorted by cheapest first

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?

    Located just 11.2 km from the city centre, Sydney is the airport most travellers will use when flying to Sydney from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Sydney (YQY) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.

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

    Airlines like Air Canada fly from Washington, D.C. Dulles Intl Airport to Sydney, Nova Scotia in about 5h 54m. The time it takes to get you to your destination can typically vary by up to . The distance between Washington, D.C. Dulles Intl Airport and Sydney, Nova Scotia is about 1629 km.

  • 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.

See more FAQs

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Alternative routes for Dulles Intl to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Halifax flights
Baltimore to Halifax flights
Dulles Intl to Charlottetown flights
Baltimore to Moncton flights
Baltimore to Sydney flights
Baltimore to Charlottetown flights

Fly with Cheapflights

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

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

Need flexible booking options for your flight to Sydney from Dulles Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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