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Cheap flights from Ontario to Australia from C$ 839

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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SYD
12 Jul — 19 Jul1
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 12 June 2026.

Thu 30/76:47 p.m.
YUL
-
MEL
2 stops47h 03m
Delta
Wed 26/810:00 a.m.
MEL
-
YUL
2 stops27h 30m
Delta
Deal found 9/6C$ 1,377
Tue 28/77:24 p.m.
YYZ
-
MEL
2 stops46h 26m
Delta
Sun 30/810:00 a.m.
MEL
-
YYZ
2 stops36h 55m
Delta
Deal found 12/6C$ 1,438
Tue 30/66:30 a.m.
YYZ
-
SYD
2 stops34h 20m
Delta
Mon 20/79:15 a.m.
SYD
-
YYZ
2 stops27h 58m
Delta
Deal found 12/6C$ 1,447
Sun 28/67:24 p.m.
YYZ
-
SYD
2 stops45h 26m
Delta
Sun 12/79:15 a.m.
SYD
-
YYZ
2 stops51h 47m
Delta
Deal found 12/6C$ 1,448
Sun 26/76:04 a.m.
YYZ
-
SYD
2 stops34h 46m
Delta
Tue 11/89:15 a.m.
SYD
-
YYZ
2 stops27h 55m
Delta
Deal found 10/6C$ 1,451
Mon 15/67:00 a.m.
YUL
-
SYD
2 stops33h 50m
Delta
Mon 6/79:15 a.m.
SYD
-
YUL
2 stops28h 40m
Delta
Deal found 9/6C$ 1,452
Sun 2/87:24 p.m.
YYZ
-
SYD
2 stops45h 26m
Delta
Sun 23/89:15 a.m.
SYD
-
YYZ
2 stops23h 19m
Delta
Deal found 8/6C$ 1,452
Wed 29/77:00 a.m.
YUL
-
SYD
2 stops33h 50m
Delta
Tue 25/89:15 a.m.
SYD
-
YUL
2 stops28h 37m
Delta
Deal found 8/6C$ 1,454
Mon 22/67:45 a.m.
YYZ
-
SYD
2 stops33h 05m
Delta
Sat 11/79:15 a.m.
SYD
-
YYZ
2 stops28h 43m
Delta
Deal found 12/6C$ 1,518
Sat 8/85:50 p.m.
YYZ
-
SYD
2 stops47h 00m
Delta
Fri 28/89:15 a.m.
SYD
-
YYZ
2 stops23h 19m
Delta
Deal found 9/6C$ 1,521
Tue 9/612:47 p.m.
YUL
-
SYD
2 stops28h 03m
Delta
Fri 19/69:15 a.m.
SYD
-
YUL
2 stops40h 28m
Delta
Deal found 9/6C$ 1,522
Thu 30/74:10 p.m.
YYZ
-
SYD
2 stops24h 40m
Delta
Tue 25/89:15 a.m.
SYD
-
YYZ
2 stops27h 55m
Delta
Deal found 11/6C$ 1,522

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 12 June 2026.

Round-trip from

C$ 1,377

One-way from

C$ 839

Popular in

December

Cheapest in

May

Average price

C$ 2,234

Good round-trip deal

C$ 2,581 or less
Delta
  • Delta
  • 30/7-26/8
  • 4 total stops
  • 74h 33m total
  • Ontario to Australia
Search Deals
Delta
  • Delta
  • 3/8
  • 2 total stops
  • 34h 50m total
  • Ontario to Australia
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 312 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 67 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 12 June 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

MontrealMelbourne

YUL - MEL

YULMEL

Montreal Pierre Elliott Trudeau Intl

Thu 30/7

6:47 p.m.-7:50 a.m.

2 stops47h 03m

Melbourne

Wed 26/8

10:00 a.m.-11:30 p.m.

2 stops27h 30m

C$ 1,377

TorontoMelbourne

YYZ - MEL

YYZMEL

Toronto Pearson Intl

Tue 28/7

7:24 p.m.-7:50 a.m.

2 stops46h 26m

Melbourne

Sun 30/8

10:00 a.m.-8:55 a.m.

2 stops36h 55m

C$ 1,443

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Fri 24/7

6:47 p.m.-6:50 a.m.

2 stops46h 03m

Sydney Kingsford Smith

Sun 9/8

9:15 a.m.-4:20 p.m.

2 stops45h 05m

C$ 1,524

TorontoMelbourne

YYZ - MEL

YYZMEL

Toronto Pearson Intl

Fri 28/8

12:09 p.m.-7:50 a.m.

2 stops29h 41m

Melbourne

Fri 11/9

10:00 a.m.-10:58 p.m.

2 stops26h 58m

C$ 1,595

TorontoMelbourne

YYZ - MEL

YYZMEL

Toronto Pearson Intl

Sun 2/8

5:45 p.m.-7:50 a.m.

2 stops48h 05m

Melbourne

Wed 2/9

10:00 a.m.-11:18 p.m.

2 stops27h 18m

C$ 1,659

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Fri 21/8

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

2 stops34h 50m

Sydney Kingsford Smith

Wed 2/9

9:15 a.m.-11:57 p.m.

2 stops28h 42m

C$ 1,739

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 27/8

6:47 p.m.-6:50 a.m.

2 stops46h 03m

Sydney Kingsford Smith

Tue 29/9

9:15 a.m.-11:22 p.m.

2 stops28h 07m

C$ 1,740
Quickest round-trip

TorontoBrisbane

YYZ - BNE

YYZBNE

Toronto Pearson Intl

Mon 2/11

7:00 p.m.-8:45 a.m.

1 stop22h 45m

Brisbane

Mon 25/1

10:45 a.m.-5:37 p.m.

1 stop21h 52m

C$ 2,218

TorontoCairns

YYZ - CNS

YYZCNS

Toronto Pearson Intl

Sat 25/7

10:55 a.m.-11:40 a.m.

2 stops34h 45m

Cairns

Mon 3/8

12:40 p.m.-6:55 a.m.

3 stops32h 15m

C$ 2,227

TorontoMelbourne

YYZ - AVV

YYZAVV

Toronto Pearson Intl

Mon 12/10

7:00 p.m.-2:10 p.m.

2 stops28h 10m

Melbourne Avalon

Fri 6/11

6:00 a.m.-4:29 p.m.

2 stops26h 29m

C$ 2,249

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

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, February is the cheapest month in which you can book a flight from Region of Ontario to Australia (average of C$ 1,830). Flying from Region of Ontario to Australia in July is currently the most expensive (average of C$ 3,138). 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 12 June 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.

Weekly flight availability from Region of Ontario to Australia

Explore weekly flight availability from Ontario to Australia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 June 2026.

The most flights from CAON to AU0 are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

How far ahead should I book a flight from Region of Ontario to Australia?

Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Region of Ontario to Australia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 22h 45m. Fly via Delta, Air Canada, or United Airlines to get the fastest option. There are 14996 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$ 808. However, be on the lookout for offers from United Airlines and Air New Zealand, 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, February is the cheapest month in which you can book a flight from Region of Ontario to Australia (average of C$ 1,830). Flying from Region of Ontario to Australia in July is currently the most expensive (average of C$ 3,138). 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 12 June 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 225AverageC$ 375FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 256AverageC$ 384FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 379AverageC$ 1,338FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 399AverageC$ 1,580FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Fiji AirwaysCheapestC$ 967AverageC$ 1,307FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Qantas AirwaysCheapestC$ 1,153AverageC$ 2,269FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapestC$ 1,292AverageC$ 2,331FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapestC$ 1,324AverageC$ 2,166FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapestC$ 1,474AverageC$ 2,307FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Cathay PacificCheapestC$ 1,563AverageC$ 2,189FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific 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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