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Cheap flights from Ontario to Australia from C$ 686

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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SYD
13 Apr — 20 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Australia

Enter your travel dates to find the best prices.

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 14 March 2026.

Sat 18/47:00 a.m.
YUL
-
SYD
2 stops57h 50m
Delta
Sun 26/49:15 a.m.
SYD
-
YUL
2 stops52h 11m
Delta
Deal found 13/3C$ 1,567
Mon 13/412:22 p.m.
YYZ
-
SYD
2 stops28h 28m
Delta
Sun 26/49:15 a.m.
SYD
-
YYZ
2 stops37h 41m
Delta
Deal found 12/3C$ 1,574
Mon 13/412:55 p.m.
YUL
-
SYD
2 stops27h 55m
Delta
Mon 20/49:15 a.m.
SYD
-
YUL
2 stops40h 21m
Delta
Deal found 13/3C$ 1,575
Wed 22/41:30 p.m.
YYZ
-
SYD
2 stops27h 20m
Delta
Tue 5/59:15 a.m.
SYD
-
YYZ
2 stops27h 52m
Delta
Deal found 11/3C$ 1,575
Sun 19/47:00 a.m.
YUL
-
SYD
2 stops33h 50m
Delta
Sun 3/59:15 a.m.
SYD
-
YUL
2 stops27h 53m
Delta
Deal found 11/3C$ 1,576
Sun 26/46:30 a.m.
YYZ
-
SYD
2 stops34h 20m
Delta
Sun 24/59:15 a.m.
SYD
-
YYZ
2 stops27h 59m
Delta
Deal found 12/3C$ 1,576
Sun 26/44:55 p.m.
YYZ
-
SYD
2 stops28h 55m
Multiple Airlines
Sun 10/51:15 p.m.
SYD
-
YYZ
2 stops31h 09m
Multiple Airlines
Deal found 10/3C$ 1,578
Sun 26/44:11 p.m.
YYZ
-
SYD
2 stops24h 39m
Delta
Sun 10/59:15 a.m.
SYD
-
YYZ
2 stops28h 43m
Delta
Deal found 11/3C$ 1,586
Sun 19/41:30 p.m.
YYZ
-
SYD
2 stops27h 20m
Delta
Thu 30/49:15 a.m.
SYD
-
YYZ
2 stops27h 55m
Delta
Deal found 14/3C$ 1,616
Tue 12/51:34 p.m.
YYZ
-
SYD
2 stops27h 16m
Delta
Thu 28/59:15 a.m.
SYD
-
YYZ
2 stops26h 40m
Delta
Deal found 12/3C$ 1,624
Mon 13/412:50 p.m.
YUL
-
SYD
2 stops28h 00m
Delta
Fri 1/59:15 a.m.
SYD
-
YUL
2 stops40h 21m
Delta
Deal found 13/3C$ 1,626
Mon 13/42:15 p.m.
YYZ
-
SYD
2 stops26h 35m
Delta
Thu 23/49:15 a.m.
SYD
-
YYZ
2 stops22h 06m
Delta
Deal found 13/3C$ 1,626

Find flight deals from Ontario to Australia

Keep the following information in mind while searching for Ontario to Australia flight deals. Data was last updated 14 March 2026.

Round-trip from

C$ 1,567

One-way from

C$ 686

Popular in

December

Cheapest in

November

Average price

C$ 2,022

Good round-trip deal

C$ 1,986 or less
Delta
  • Delta
  • 18/4-26/4
  • 4 total stops
  • 110h 01m total
  • Ontario to Australia
Search Deals
22/4
  • 22/4
  • 3 total stops
  • 34h 35m total
  • Ontario to Australia
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 236 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 61 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Ontario to Australia.
Search Deals

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 14 March 2026.
Use the filters below to find and compare flights from Ontario to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Tue 26/5

4:04 p.m.-6:50 a.m.

2 stops24h 46m

Sydney Kingsford Smith

Tue 2/6

9:15 a.m.-10:59 p.m.

2 stops27h 44m

C$ 1,575

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 18/4

7:00 a.m.-6:50 a.m.

2 stops33h 50m

Sydney Kingsford Smith

Sun 26/4

9:15 a.m.-11:59 a.m.

2 stops40h 44m

C$ 1,626

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

2:20 p.m.-7:00 a.m.

2 stops26h 40m

Sydney Kingsford Smith

Tue 22/9

10:20 a.m.-8:16 a.m.

1 stop35h 56m

C$ 1,764

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 1/8

4:55 p.m.-6:50 a.m.

2 stops47h 55m

Sydney Kingsford Smith

Wed 12/8

9:15 a.m.-11:10 p.m.

2 stops27h 55m

C$ 1,776

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 30/7

6:35 p.m.-6:55 a.m.

1 stop22h 20m

Sydney Kingsford Smith

Tue 18/8

10:20 a.m.-8:16 a.m.

1 stop35h 56m

C$ 1,801

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 3/8

3:25 p.m.-7:00 a.m.

2 stops25h 35m

Sydney Kingsford Smith

Thu 13/8

10:20 a.m.-8:16 a.m.

1 stop35h 56m

C$ 1,801

TorontoBrisbane

YYZ - BNE

YYZBNE

Toronto Pearson Intl

Sat 25/4

4:18 p.m.-6:30 a.m.

2 stops48h 12m

Brisbane

Wed 29/4

10:30 a.m.-4:14 p.m.

1 stop19h 44m

C$ 1,808

TorontoBrisbane

YYZ - BNE

YYZBNE

Toronto Pearson Intl

Mon 25/5

4:18 p.m.-6:30 a.m.

2 stops24h 12m

Brisbane

Wed 3/6

10:30 a.m.-11:59 p.m.

2 stops27h 29m

C$ 1,820

TorontoBrisbane

YYZ - BNE

YYZBNE

Toronto Pearson Intl

Sun 5/4

9:35 a.m.-6:30 a.m.

2 stops30h 55m

Brisbane

Tue 5/5

10:30 a.m.-7:02 p.m.

2 stops22h 32m

C$ 1,820
Quickest round-trip

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Tue 21/4

5:16 p.m.-6:55 a.m.

1 stop23h 39m

Sydney Kingsford Smith

Wed 20/5

9:30 a.m.-7:37 p.m.

2 stops24h 07m

C$ 1,820

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/3

Showing 1-10 of 60 resultsSorted by cheapest first
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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, May is the cheapest month in which you can book a flight from Region of Ontario to Australia (average of C$ 263). Flying from Region of Ontario to Australia in November is currently the most expensive (average of C$ 758). 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 14 March 2026.

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 24h 46m. Fly via Delta, United Airlines, or Air Canada to get the fastest option. There are 15545 km between Region of Ontario and Australia. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Region of Ontario to Australia one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as C$ 791. However, be on the lookout for offers from Air Canada and Cathay Pacific, as they are both options that can get you from Region of Ontario to Australia for a low price.

  • 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, May is the cheapest month in which you can book a flight from Region of Ontario to Australia (average of C$ 263). Flying from Region of Ontario to Australia in November is currently the most expensive (average of C$ 758). 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 14 March 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 205AverageC$ 319FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 240AverageC$ 364FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 371AverageC$ 1,278FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 390AverageC$ 1,509FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 537AverageC$ 2,269FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Fiji AirwaysCheapestC$ 974AverageC$ 1,271FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Cathay PacificCheapestC$ 1,070AverageC$ 2,118FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
China EasternCheapestC$ 1,168AverageC$ 2,397FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qantas AirwaysCheapestC$ 1,213AverageC$ 2,279FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air New ZealandCheapestC$ 1,273AverageC$ 2,104FlexibilityNo 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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