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Cheap flights from Ontario to Sydney from $656

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 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SYD
10 9월 — 17 9월1
1 adult

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 5 9월 2025.

Round-trip from

$1,637

One-way from

$656

Popular in

December

Cheapest in

April

Average price

$2,330
20/10-27/10
  • 20/10-27/10
  • 6 total stops
  • 65h 33m total
  • Ontario to Sydney
Search Deals
21/10
  • 21/10
  • 2 total stops
  • 34h 40m total
  • Ontario to Sydney
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($415 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($92 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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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 5 9월 2025.

월 20/1006:00YKF - SYD
3 stops35h 20mMultiple Airlines
월 27/1014:15SYD - YKF
3 stops30h 13mMultiple Airlines
Deal found 4/9$1,637
월 20/1006:30YYZ - SYD
3 stops34h 50mMultiple Airlines
월 27/1014:15SYD - YYZ
3 stops30h 58mMultiple Airlines
Deal found 4/9$1,676
일 19/1008:00YYZ - SYD
3 stops33h 20mMultiple Airlines
일 26/1010:20SYD - YYZ
3 stops34h 53mMultiple Airlines
Deal found 3/9$1,736
금 17/1018:30YYZ - SYD
2 stops49h 15mMultiple Airlines
수 22/1018:45SYD - YYZ
1 stop27h 14mMultiple Airlines
Deal found 5/9$1,763
수 15/1018:30YYZ - SYD
2 stops49h 15mMultiple Airlines
수 22/1018:45SYD - YYZ
1 stop27h 14mMultiple Airlines
Deal found 3/9$1,765
토 18/1018:45YYZ - SYD
2 stops49h 00mMultiple Airlines
토 25/1018:45SYD - YYZ
1 stop41h 37mMultiple Airlines
Deal found 3/9$1,777
일 19/1006:00YKF - SYD
3 stops35h 20mMultiple Airlines
일 26/1010:20SYD - YKF
3 stops34h 08mMultiple Airlines
Deal found 3/9$1,783
목 23/1014:00YYZ - SYD
2 stops34h 40mMultiple Airlines
토 25/1018:45SYD - YYZ
1 stop41h 37mMultiple Airlines
Deal found 3/9$1,811
수 10/901:35YYZ - SYD
2 stops39h 45mMultiple Airlines
목 18/917:45SYD - YYZ
1 stop42h 05mMultiple Airlines
Deal found 4/9$1,812
수 24/908:30YYZ - SYD
2 stops33h 30mMultiple Airlines
수 15/1014:15SYD - YYZ
2 stops31h 44mMultiple Airlines
Deal found 2/9$1,814
월 20/1006:00YHM - SYD
3 stops35h 20mMultiple Airlines
월 27/1010:20SYD - YHM
1 stop23h 40mMultiple Airlines
Deal found 4/9$1,965
일 19/1006:00YHM - SYD
3 stops35h 20mMultiple Airlines
일 26/1012:30SYD - YHM
3 stops45h 30mMultiple Airlines
Deal found 4/9$1,970

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 5 9월 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

YKF - SYD

YKFSYD

Toronto Region of Waterloo Intl

월 20/10

06:00-08:20

3 stops35h 20m

Sydney Kingsford Smith

월 27/10

14:15-05:28

3 stops30h 13m

$1,637

TorontoSydney

YKF - SYD

YKFSYD

Toronto Region of Waterloo Intl

일 19/10

06:00-08:20

3 stops35h 20m

Sydney Kingsford Smith

일 26/10

10:20-05:28

3 stops34h 08m

$1,783

HamiltonSydney

YHM - SYD

YHMSYD

Hamilton

월 20/10

06:00-08:20

3 stops35h 20m

Sydney Kingsford Smith

월 27/10

10:20-19:00

1 stop23h 40m

$1,965

HamiltonSydney

YHM - SYD

YHMSYD

Hamilton

일 19/10

06:00-08:20

3 stops35h 20m

Sydney Kingsford Smith

일 26/10

12:30-19:00

3 stops45h 30m

$1,970

TorontoSydney

YTZ - SYD

YTZSYD

Toronto Island

일 21/9

10:25-11:45

3 stops35h 20m

Sydney Kingsford Smith

목 25/9

13:15-09:45

3 stops34h 30m

$1,988

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

토 18/10

06:25-08:20

3 stops34h 55m

Sydney Kingsford Smith

토 25/10

10:20-00:21

3 stops29h 01m

$2,070

TorontoSydney

YTZ - SYD

YTZSYD

Toronto Island

월 22/9

12:25-07:05

2 stops28h 40m

Sydney Kingsford Smith

일 5/10

18:45-11:45

2 stops32h 00m

$2,088

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

일 19/10

07:00-08:20

3 stops34h 20m

Sydney Kingsford Smith

일 26/10

10:20-00:41

3 stops29h 21m

$2,114

TorontoSydney

YTZ - SYD

YTZSYD

Toronto Island

월 1/12

15:30-09:35

2 stops26h 05m

Sydney Kingsford Smith

월 22/12

16:00-09:55

2 stops33h 55m

$2,120

TorontoSydney

YTZ - SYD

YTZSYD

Toronto Island

월 23/2

12:30-09:35

2 stops29h 05m

Sydney Kingsford Smith

수 25/3

10:20-21:35

2 stops26h 15m

$2,120

Flights are sorted by cheapest return flights first.

Deals found on 5/9

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 return 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, May is the cheapest month in which you can book a flight from Region of Ontario to Sydney (average of $129). Flying from Region of Ontario to Sydney in October is currently the most expensive (average of $171). 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 5 9월 2025.

When flying from Region of Ontario to Sydney, 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 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 $2,120, Air Canada can have you in Sydney from Region of Ontario in 26h 05m. The distance from Region of Ontario to Sydney is about 15562 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The most popular route from Region of Ontario to Sydney is Toronto Pearson Intl - Sydney Kingsford Smith. You may also consider Montreal Pierre Elliott Trudeau Intl - Sydney Kingsford Smith or Toronto Island - Sydney Kingsford Smith.

  • 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 holiday 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, May is the cheapest month in which you can book a flight from Region of Ontario to Sydney (average of $129). Flying from Region of Ontario to Sydney in October is currently the most expensive (average of $171). 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
Wollongong
Katoomba
Penrith
Terrigal
Manly
Lithgow
Randwick
Bondi Beach
Coogee
Cronulla
Leura

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Ontario to Sydney

Discover the top 4 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 647,157 searches. Data last updated 5 9월 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,355Average$2,329FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapest$1,572Average$2,429FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$1,646Average$2,523FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,955Average$2,193FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers 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?

Cheapflights helps you search for flights from Ontario to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sydney from Ontario.

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

Certainly. Search results for flights to Sydney 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 Sydney become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to Sydney on Cheapflights with our Price Alert feature and get notified when better prices are available.

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