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Cheap flights from Ontario to Sydney from C$ 735

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 17/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SYD
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Ontario to Sydney

Keep the following information in mind while searching for Ontario to Sydney flight deals. Data was last updated 16 September 2025.

Round-trip from

C$ 1,544

One-way from

C$ 735

Popular in

December

Cheapest in

April

Average price

C$ 2,123

Good round-trip deal

C$ 1,708 or less
Alaska Airlines
  • Alaska Airlines
  • 15/11-21/11
  • 4 total stops
  • 92h 55m total
  • Ontario to Sydney
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17/2
  • 17/2
  • 3 total stops
  • 33h 15m total
  • Ontario to Sydney
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Highest demand for flights based on searches. 10% potential increase in price (C$ 348 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 73 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ontario to Sydney Kingsford Smith.
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Find flight deals from Ontario to Sydney

Cheapest flights from Ontario to Sydney
Explore the most affordable flight options available from Ontario to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Thu 16/104:45 p.m.YYZ - SYD
2 stops36h 00mAlaska Airlines
Tue 21/109:40 p.m.SYD - YYZ
2 stops32h 20mAlaska Airlines
Deal found 15/9C$ 1,575
Wed 29/1012:45 p.m.YYZ - SYD
2 stops33h 00mMultiple Airlines
Wed 5/112:00 p.m.SYD - YYZ
2 stops26h 15mMultiple Airlines
Deal found 13/9C$ 1,582
Tue 30/91:30 p.m.YYZ - SYD
3 stops32h 15mMultiple Airlines
Sat 4/101:45 p.m.SYD - YYZ
2 stops30h 01mMultiple Airlines
Deal found 14/9C$ 1,600
Mon 1/124:45 p.m.YYZ - SYD
2 stops59h 00mAlaska Airlines
Thu 11/129:40 p.m.SYD - YYZ
2 stops33h 55mAlaska Airlines
Deal found 14/9C$ 1,608
Fri 17/104:45 p.m.YYZ - SYD
2 stops36h 00mAlaska Airlines
Tue 21/109:40 p.m.SYD - YYZ
2 stops32h 20mAlaska Airlines
Deal found 15/9C$ 1,620
Fri 7/114:55 p.m.YYZ - SYD
2 stops27h 35mMultiple Airlines
Thu 20/112:00 p.m.SYD - YYZ
2 stops26h 05mMultiple Airlines
Deal found 16/9C$ 1,638
Tue 14/108:30 a.m.YYZ - SYD
2 stops33h 30mMultiple Airlines
Tue 21/102:15 p.m.SYD - YYZ
3 stops31h 37mMultiple Airlines
Deal found 15/9C$ 1,644
Thu 16/104:45 p.m.YYZ - SYD
2 stops36h 00mAlaska Airlines
Sun 19/109:40 p.m.SYD - YYZ
2 stops56h 20mAlaska Airlines
Deal found 15/9C$ 1,647
Wed 15/104:45 p.m.YYZ - SYD
2 stops60h 00mAlaska Airlines
Tue 21/109:40 p.m.SYD - YYZ
2 stops32h 20mAlaska Airlines
Deal found 15/9C$ 1,658
Sat 29/114:45 p.m.YYZ - SYD
2 stops59h 00mAlaska Airlines
Thu 11/129:40 p.m.SYD - YYZ
2 stops33h 55mAlaska Airlines
Deal found 14/9C$ 1,667
Tue 30/912:25 p.m.YTZ - SYD
3 stops33h 20mMultiple Airlines
Sat 4/101:45 p.m.SYD - YTZ
3 stops34h 00mMultiple Airlines
Deal found 14/9C$ 1,683
Thu 16/104:45 p.m.YYZ - SYD
2 stops36h 00mAlaska Airlines
Sat 25/109:40 p.m.SYD - YYZ
2 stops32h 55mAlaska Airlines
Deal found 15/9C$ 1,691

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario 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 16 September 2025.
Use the filters below to find and compare flights from Ontario to Sydney that are best for you.

Fly from

Ontario

Fly to

Sydney

Route

Depart

Return

Price

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Wed 15/10

4:45 p.m.-7:45 p.m.

2 stops60h 00m

Sydney Kingsford Smith

Tue 21/10

9:40 p.m.-3:00 p.m.

2 stops32h 20m

C$ 1,658

TorontoSydney

YTZ - SYD

YTZSYD

Toronto Island

Tue 30/9

12:25 p.m.-11:45 a.m.

3 stops33h 20m

Sydney Kingsford Smith

Sat 4/10

1:45 p.m.-9:45 a.m.

3 stops34h 00m

C$ 1,683

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Fri 17/10

4:45 p.m.-7:45 p.m.

2 stops36h 00m

Sydney Kingsford Smith

Thu 23/10

9:40 p.m.-3:00 p.m.

2 stops56h 20m

C$ 1,692

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Wed 15/10

4:45 p.m.-7:45 p.m.

2 stops60h 00m

Sydney Kingsford Smith

Thu 23/10

9:40 p.m.-3:00 p.m.

2 stops56h 20m

C$ 1,730

TorontoSydney

YKF - SYD

YKFSYD

Toronto Region of Waterloo Intl

Mon 27/10

11:40 a.m.-12:45 p.m.

3 stops34h 05m

Sydney Kingsford Smith

Sun 9/11

2:00 p.m.-5:28 a.m.

3 stops31h 28m

C$ 1,790

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Tue 14/10

4:45 p.m.-7:45 p.m.

2 stops60h 00m

Sydney Kingsford Smith

Sat 25/10

9:40 p.m.-3:35 p.m.

2 stops32h 55m

C$ 1,924

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 9/11

7:30 a.m.-8:45 a.m.

3 stops33h 15m

Sydney Kingsford Smith

Mon 24/11

1:55 p.m.-8:26 a.m.

3 stops34h 31m

C$ 2,014

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Mon 17/11

4:45 p.m.-7:45 p.m.

2 stops59h 00m

Sydney Kingsford Smith

Tue 2/12

9:40 p.m.-3:35 p.m.

2 stops33h 55m

C$ 2,051

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 25/2

8:50 p.m.-6:50 a.m.

1 stop42h 00m

Sydney Kingsford Smith

Tue 10/3

3:50 p.m.-3:05 p.m.

1 stop38h 15m

C$ 2,115

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 24/2

8:50 p.m.-6:50 a.m.

1 stop42h 00m

Sydney Kingsford Smith

Thu 12/3

3:50 p.m.-3:05 p.m.

1 stop38h 15m

C$ 2,115

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/9

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Sydney

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

Cheapflights Insights

Everything you need to know about your flight from Ontario to Sydney

What is the cheapest month to book a flight from Region of Ontario to Sydney?

Currently, February is the cheapest month in which you can book a flight from Region of Ontario to Sydney (average of C$ 1,326). Flying from Region of Ontario to Sydney in December is currently the most expensive (average of C$ 1,881). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ON to SYD?

Find hourly flight availability from Ontario to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Sydney as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Ontario 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 Ontario?

    For a flight from Ontario to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre of the city.

  • How long is the flight from Region of Ontario to Sydney?

    For as low as C$ 2,155, Alaska Airlines can have you in Sydney from Region of Ontario in 34h 45m. The distance from Region of Ontario to Sydney is about 15862 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Region of Ontario to Sydney?

    While some choose either Montreal Pierre Elliott Trudeau Intl - Sydney Kingsford Smith or Toronto Island - Sydney Kingsford Smith, Toronto Pearson Intl - Sydney Kingsford Smith is the most popular route from Region of Ontario to Sydney.

  • What are the cheapest flights from Region of Ontario to Sydney?

    Looking for the cheapest flight from Region of Ontario to Sydney? While on average our users pay C$ 2,149, our data indicates the cheapest price to be C$ 1,708. The most popular route (Toronto Pearson Intl - Sydney Kingsford Smith), is priced around C$ 1,380.

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

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

  • How can I find direct flights from Ontario to Sydney?

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

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

    Yes. Cheapflights offers flight deals from Ontario 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.

  • What is the cheapest month to book a flight from Region of Ontario to Sydney?

    Currently, February is the cheapest month in which you can book a flight from Region of Ontario to Sydney (average of C$ 1,326). Flying from Region of Ontario to Sydney in December is currently the most expensive (average of C$ 1,881). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Penrith

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Alternative routes for Ontario to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Ontario to Sydney

Discover the top 10 airlines that operate flights from Ontario to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 221AverageC$ 320FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 249AverageC$ 375FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 382AverageC$ 1,074FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 784AverageC$ 1,267FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Fiji AirwaysCheapestC$ 988AverageC$ 1,131FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Alaska AirlinesCheapestC$ 1,173AverageC$ 1,766FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 1,220AverageC$ 2,186FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air New ZealandCheapestC$ 1,392AverageC$ 1,889FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Qantas AirwaysCheapestC$ 1,484AverageC$ 2,169FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapestC$ 1,556AverageC$ 2,275FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Sydney?

When you search for this flight from Ontario to Sydney, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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 from Ontario to Sydney.

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

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

Can Cheapflights notify me if prices for flights from Ontario to Sydney become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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