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Cheap flights from Ontario to Australia from C$ 736

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SYD
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Ontario to Australia

Keep the following information in mind while searching for Ontario to Australia flight deals. Data was last updated 15 September 2025.

Round-trip from

C$ 1,321

One-way from

C$ 736

Popular in

December

Cheapest in

April

Average price

C$ 2,123

Good round-trip deal

C$ 1,708 or less
Delta
  • Delta
  • 27/2-20/3
  • 4 total stops
  • 55h 45m total
  • Ontario to Australia
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9/11
  • 9/11
  • 3 total stops
  • 33h 15m total
  • Ontario to Australia
Search Deals
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).
Search Deals
Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ontario to Australia.
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Find flight deals from Ontario to Australia

Cheapest flights from Ontario to Australia
Explore the most affordable flight options available from Ontario to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.

Mon 17/114:45 p.m.YYZ - SYD
2 stops59h 00mAlaska Airlines
Fri 21/119:40 p.m.SYD - YYZ
2 stops57h 55mAlaska Airlines
Deal found 14/9C$ 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 28/101:30 p.m.YYZ - SYD
3 stops32h 15mMultiple Airlines
Tue 4/112:10 p.m.SYD - YYZ
2 stops32h 30mMultiple Airlines
Deal found 13/9C$ 1,585
Mon 20/1010:40 a.m.YYZ - SYD
2 stops35h 05mMultiple Airlines
Wed 5/112:00 p.m.SYD - YYZ
2 stops32h 40mMultiple Airlines
Deal found 13/9C$ 1,597
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
Sat 13/124:45 p.m.YYZ - SYD
2 stops59h 00mAlaska Airlines
Wed 14/19:40 p.m.SYD - YYZ
2 stops33h 55mAlaska Airlines
Deal found 13/9C$ 1,616
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
Thu 11/124:45 p.m.YYZ - SYD
2 stops59h 00mAlaska Airlines
Wed 14/19:40 p.m.SYD - YYZ
2 stops33h 55mAlaska Airlines
Deal found 13/9C$ 1,626
Thu 16/104:45 p.m.YYZ - SYD
2 stops36h 00mAlaska Airlines
Thu 23/109:40 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
Tue 14/104:40 p.m.YYZ - SYD
2 stops29h 05mMultiple Airlines
Tue 21/102:15 p.m.SYD - YYZ
2 stops30h 31mMultiple Airlines
Deal found 14/9C$ 1,663

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Australia 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 15 September 2025.
Use the filters below to find and compare flights from Ontario to Australia that are best for you.

Fly from

Ontario

Fly to

Australia

Route

Depart

Return

Price

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Tue 14/10

8:30 a.m.-9:00 a.m.

2 stops33h 30m

Sydney Kingsford Smith

Tue 21/10

2:15 p.m.-6:52 a.m.

3 stops31h 37m

C$ 1,644

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Thu 16/10

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

2 stops36h 00m

Sydney Kingsford Smith

Sun 19/10

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

2 stops56h 20m

C$ 1,647

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

Sat 18/10

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

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

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Wed 12/11

10:00 a.m.-12:30 p.m.

2 stops34h 30m

Sydney Kingsford Smith

Tue 18/11

11:20 a.m.-9:22 p.m.

1 stop26h 02m

C$ 1,877

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

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Sat 14/2

8:50 a.m.-9:50 p.m.

2 stops45h 00m

Sydney Kingsford Smith

Sat 28/2

2:10 p.m.-8:04 p.m.

2 stops45h 54m

C$ 1,981

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Wed 29/10

5:50 p.m.-8:35 a.m.

1 stop23h 45m

Sydney Kingsford Smith

Wed 5/11

11:20 a.m.-3:45 p.m.

1 stop20h 25m

C$ 2,103

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/9

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

Have a flexible travel schedule? Discover the best time to fly to Australia 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 Australia

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

Currently, February is the cheapest month in which you can book a flight from Region of Ontario to Australia (average of C$ 1,326). Flying from Region of Ontario to Australia 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 AU?

Find hourly flight availability from Ontario to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 September 2025.

When flying from Region of Ontario to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

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

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

    There are many flights that can get you from Region of Ontario to Australia in 23h 45m. Fly via Alaska Airlines, Air Canada, or Qatar Airways to get the fastest option. There are 15862 km between Region of Ontario and Australia. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Australia 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 Australia?

    Currently, February is the cheapest month in which you can book a flight from Region of Ontario to Australia (average of C$ 1,326). Flying from Region of Ontario to Australia 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Australia

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 Australia

Discover the top 10 airlines that operate flights from Ontario to Australia. 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 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 211AverageC$ 347FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 243AverageC$ 374FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 375AverageC$ 1,213FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 437AverageC$ 2,378FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 784AverageC$ 1,770FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Fiji AirwaysCheapestC$ 938AverageC$ 1,156FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Cathay PacificCheapestC$ 1,080AverageC$ 2,529FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Alaska AirlinesCheapestC$ 1,173AverageC$ 1,766FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 1,220AverageC$ 2,452FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air New ZealandCheapestC$ 1,353AverageC$ 2,067FlexibilityNo cancel feeOn-time78%
Search Air New Zealand 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 Australia?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Australia from Ontario today with Cheapflights!

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

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 Australia.

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

Certainly. Search results for flights to Australia from Ontario 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 Ontario to Australia become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Australia from Ontario today and book when prices fit your budget.

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