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Cheap flights from Ontario to Sydney from C$ 759

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 18/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SYD
3 Jan — 10 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Sydney

Enter your travel dates to find the best prices.

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 4 December 2025.

Tue 2/1210:00 p.m.YYZ - SYD
2 stops43h 35mAir Canada
Tue 17/211:20 a.m.SYD - YYZ
2 stops21h 58mAir Canada
Deal found 2/12C$ 1,584
Wed 3/1212:36 p.m.YYZ - SYD
2 stops28h 24mAmerican Airlines
Wed 10/1211:20 a.m.SYD - YYZ
2 stops26h 09mAmerican Airlines
Deal found 2/12C$ 1,634
Wed 3/121:10 p.m.YYZ - SYD
2 stops25h 45mMultiple Airlines
Wed 10/122:05 p.m.SYD - YYZ
1 stop24h 39mMultiple Airlines
Deal found 2/12C$ 1,710
Wed 3/1212:59 p.m.YUL - SYD
2 stops28h 01mAmerican Airlines
Wed 10/1211:20 a.m.SYD - YUL
2 stops27h 20mAmerican Airlines
Deal found 2/12C$ 1,712
Wed 3/121:10 p.m.YYZ - SYD
2 stops25h 45mQantas Airways
Wed 10/122:05 p.m.SYD - YYZ
1 stop42h 11mQantas Airways
Deal found 2/12C$ 1,802
Tue 9/128:00 a.m.YYZ - SYD
2 stops33h 00mMultiple Airlines
Mon 19/111:20 a.m.SYD - YYZ
2 stops29h 18mMultiple Airlines
Deal found 1/12C$ 1,834
Wed 3/129:00 a.m.YUL - SYD
1 stop32h 35mAir Canada
Wed 10/1211:20 a.m.SYD - YUL
2 stops40h 38mAir Canada
Deal found 2/12C$ 1,835
Tue 30/121:55 p.m.YYZ - SYD
1 stop38h 55mCathay Pacific
Sun 18/110:20 p.m.SYD - YYZ
1 stop29h 55mCathay Pacific
Deal found 3/12C$ 1,841
Fri 5/126:45 p.m.YYZ - SYD
1 stop43h 50mMultiple Airlines
Thu 11/1211:20 a.m.SYD - YYZ
2 stops26h 09mMultiple Airlines
Deal found 4/12C$ 1,885
Tue 30/126:45 p.m.YYZ - SYD
1 stop22h 50mAir Canada
Sun 18/111:20 a.m.SYD - YYZ
2 stops23h 47mAir Canada
Deal found 3/12C$ 1,917
Sat 6/125:55 p.m.YYZ - SYD
2 stops28h 00mMultiple Airlines
Sat 17/14:00 p.m.SYD - YYZ
1 stop23h 32mMultiple Airlines
Deal found 2/12C$ 1,959
Mon 22/129:00 p.m.YUL - SYD
1 stop41h 55mAir Canada
Mon 29/124:00 p.m.SYD - YUL
1 stop33h 08mAir Canada
Deal found 3/12C$ 1,982

Find flight deals from Ontario to Sydney

Keep the following information in mind while searching for Ontario to Sydney flight deals. Data was last updated 4 December 2025.

Round-trip from

C$ 1,329

One-way from

C$ 759

Popular in

December

Cheapest in

April

Average price

C$ 2,746

Good round-trip deal

C$ 2,431 or less
Delta
  • Delta
  • 20/1-16/2
  • 4 total stops
  • 69h 00m total
  • Ontario to Sydney
Search Deals
18/2
  • 18/2
  • 3 total stops
  • 37h 50m total
  • Ontario to Sydney
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 361 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 70 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Ontario to Sydney Kingsford Smith.
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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 4 December 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

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 18/1

7:00 a.m.-8:30 a.m.

2 stops33h 30m

Sydney Kingsford Smith

Sun 8/2

10:40 a.m.-11:50 p.m.

2 stops29h 10m

C$ 1,329

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 3/5

6:15 p.m.-6:35 a.m.

2 stops46h 20m

Sydney Kingsford Smith

Tue 2/6

9:25 a.m.-11:10 p.m.

2 stops27h 45m

C$ 1,329

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 18/1

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

2 stops31h 50m

Sydney Kingsford Smith

Mon 9/2

10:40 a.m.-11:50 p.m.

2 stops29h 10m

C$ 1,329

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

12:45 p.m.-6:35 a.m.

2 stops27h 50m

Sydney Kingsford Smith

Wed 3/6

9:25 a.m.-11:58 p.m.

2 stops28h 33m

C$ 1,329

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

7:00 a.m.-6:35 a.m.

2 stops57h 35m

Sydney Kingsford Smith

Wed 3/6

9:25 a.m.-11:10 p.m.

2 stops27h 45m

C$ 1,329

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 22/2

7:00 a.m.-8:30 a.m.

2 stops33h 30m

Sydney Kingsford Smith

Sun 8/3

10:40 a.m.-10:37 a.m.

2 stops39h 57m

C$ 1,329

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 20/1

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

2 stops31h 50m

Sydney Kingsford Smith

Tue 24/2

10:40 a.m.-11:26 p.m.

2 stops28h 46m

C$ 1,329

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 18/3

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

2 stops33h 25m

Sydney Kingsford Smith

Tue 21/4

9:25 a.m.-11:10 p.m.

2 stops27h 45m

C$ 1,333

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 4/5

12:45 p.m.-6:35 a.m.

2 stops27h 50m

Sydney Kingsford Smith

Fri 5/6

9:25 a.m.-11:58 p.m.

2 stops28h 33m

C$ 1,377

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 27/1

12:50 p.m.-8:30 a.m.

2 stops27h 40m

Sydney Kingsford Smith

Sat 28/2

10:40 a.m.-11:25 a.m.

2 stops40h 45m

C$ 1,377

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

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, September is the cheapest month in which you can book a flight from Region of Ontario to Sydney (average of C$ 308). Flying from Region of Ontario to Sydney in November is currently the most expensive (average of C$ 1,394). 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 4 December 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 14% on flights from Region of Ontario to Sydney by exploring options for tickets in the evening.

What is the cheapest day to fly from Region of Ontario to Sydney?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Sydney. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Region of Ontario to Sydney flight should consider departing on Friday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Region of Ontario to Sydney

Explore weekly flight availability from Ontario to Sydney. 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 4 December 2025.

The most flights from CAON to SYD 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 much does it cost to fly round-trip from Region of Ontario to Sydney?

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$ 1,467, Delta can have you in Sydney from Region of Ontario in 26h 50m. 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 cheapest airlines to fly from Region of Ontario to Sydney one-way?

    The cheapest airlines for a one-way flight from Region of Ontario to Sydney are Delta (C$ 807), WestJet (C$ 816), and Air New Zealand (C$ 944).

  • 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$ 2,746, our data indicates the cheapest price to be C$ 1,681. The most popular route (Toronto Pearson Intl - Sydney Kingsford Smith), is priced around C$ 1,273.

  • 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, September is the cheapest month in which you can book a flight from Region of Ontario to Sydney (average of C$ 308). Flying from Region of Ontario to Sydney in November is currently the most expensive (average of C$ 1,394). 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
Bondi Beach
Penrith
Parramatta

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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 4 December 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 215AverageC$ 311FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 250AverageC$ 380FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 381AverageC$ 1,227FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Fiji AirwaysCheapestC$ 998AverageC$ 1,179FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
American AirlinesCheapestC$ 1,103AverageC$ 1,295FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Alaska AirlinesCheapestC$ 1,237AverageC$ 1,596FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 1,241AverageC$ 2,211FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air New ZealandCheapestC$ 1,289AverageC$ 2,003FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Qantas AirwaysCheapestC$ 1,310AverageC$ 2,157FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Cathay PacificCheapestC$ 1,493AverageC$ 2,184FlexibilityNo 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 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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