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Cheap flights from Ontario to Sydney from $723

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 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SYD
25 Aug — 1 Sep1
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 26 July 2026.

Mon 27/707:00
YUL
-
SYD
2 stops33h 50m
Delta
Mon 3/809:15
SYD
-
YUL
2 stops28h 37m
Delta
Deal found 26/7$1,553
Mon 10/807:00
YUL
-
SYD
2 stops33h 50m
Delta
Mon 24/809:15
SYD
-
YUL
2 stops28h 15m
Delta
Deal found 25/7$1,555
Wed 29/718:29
YYZ
-
SYD
2 stops46h 21m
Delta
Sun 9/809:15
SYD
-
YYZ
2 stops39h 10m
Delta
Deal found 22/7$1,623
Mon 10/807:00
YUL
-
SYD
2 stops33h 50m
Delta
Sat 29/809:15
SYD
-
YUL
2 stops28h 37m
Delta
Deal found 23/7$1,625
Fri 7/813:38
YYZ
-
SYD
2 stops27h 12m
Delta
Sun 23/809:15
SYD
-
YYZ
2 stops28h 42m
Delta
Deal found 25/7$1,625
Mon 10/806:15
YYZ
-
SYD
2 stops34h 35m
Delta
Thu 20/809:15
SYD
-
YYZ
2 stops39h 10m
Delta
Deal found 21/7$1,629
Mon 31/812:47
YUL
-
SYD
2 stops28h 03m
Delta
Wed 9/909:15
SYD
-
YUL
2 stops28h 35m
Delta
Deal found 23/7$1,640
Sun 30/809:45
YYZ
-
SYD
2 stops31h 05m
Delta
Sun 6/909:15
SYD
-
YYZ
2 stops37h 40m
Delta
Deal found 24/7$1,640
Wed 2/913:10
YUL
-
SYD
2 stops30h 15m
ANA
Wed 9/911:45
SYD
-
YUL
2 stops26h 54m
ANA
Deal found 24/7$1,693
Thu 6/819:24
YYZ
-
SYD
2 stops45h 26m
Delta
Sat 29/809:15
SYD
-
YYZ
2 stops27h 55m
Delta
Deal found 23/7$1,695
Sun 30/806:55
YOW
-
SYD
2 stops46h 15m
ANA
Mon 14/911:45
SYD
-
YOW
2 stops27h 08m
ANA
Deal found 22/7$1,696
Fri 7/806:00
YUL
-
SYD
2 stops34h 50m
Delta
Fri 21/809:15
SYD
-
YUL
2 stops28h 37m
Delta
Deal found 22/7$1,696

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 26 July 2026.

Round-trip from

$1,553

One-way from

$723

Popular in

December

Cheapest in

May

Average price

$2,307
Delta
  • Delta
  • 11/8-25/8
  • 4 total stops
  • 62h 15m total
  • Ontario to Sydney
Search Deals
Delta
  • Delta
  • 12/8
  • 2 total stops
  • 33h 50m total
  • Ontario to Sydney
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($363 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($81 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 26 July 2026.
Use the filters below to find and compare flights from Ontario to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 11/8

07:00-06:50

2 stops33h 50m

Sydney Kingsford Smith

Tue 25/8

09:15-23:40

2 stops28h 25m

$1,553

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Fri 7/8

06:00-06:50

2 stops34h 50m

Sydney Kingsford Smith

Fri 21/8

09:15-23:52

2 stops28h 37m

$1,696

LondonSydney

YXU - SYD

YXUSYD

London

Tue 8/9

06:10-11:50

3 stops39h 40m

Sydney Kingsford Smith

Tue 15/9

13:15-05:20

3 stops30h 05m

$1,991

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 9/8

07:00-06:50

2 stops33h 50m

Sydney Kingsford Smith

Sun 23/8

09:15-23:40

2 stops28h 25m

$2,058

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Tue 25/8

18:25-08:00

2 stops47h 35m

Sydney Kingsford Smith

Tue 22/9

10:15-06:10

2 stops33h 55m

$2,156

OttawaSydney

YOW - SYD

YOWSYD

Ottawa

Tue 24/11

05:40-06:25

3 stops32h 45m

Sydney Kingsford Smith

Thu 3/12

06:00-13:12

3 stops47h 12m

$2,202

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Sat 7/11

20:10-06:50

1 stop42h 40m

Sydney Kingsford Smith

Sat 14/11

15:50-14:30

1 stop38h 40m

$2,206

TorontoSydney

YTZ - SYD

YTZSYD

Toronto Island

Mon 7/9

16:55-17:10

2 stops34h 15m

Sydney Kingsford Smith

Mon 14/9

14:50-20:11

2 stops43h 21m

$2,206

TorontoSydney

YTZ - SYD

YTZSYD

Toronto Island

Mon 9/11

15:35-09:35

2 stops26h 00m

Sydney Kingsford Smith

Mon 23/11

11:20-19:56

2 stops24h 36m

$2,217

TorontoSydney

YYZ - SYD

YYZSYD

Toronto Pearson Intl

Sun 11/10

13:40-17:50

1 stop37h 10m

Sydney Kingsford Smith

Mon 26/10

16:50-08:50

1 stop31h 00m

$2,310

Flights are sorted by cheapest return flights first.

Deals found on 22/7

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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, April is the cheapest month in which you can book a flight from Region of Ontario to Sydney (average of $2,004). Flying from Region of Ontario to Sydney in December is currently the most expensive (average of $2,844). 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 26 July 2026.

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.

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 26 July 2026.

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 for a return flight from Region of Ontario to Sydney?

Airfare is below average for this route at the moment.
Region of Ontario to Sydney flights typically cost between $1,858 and $2,725 in August.
The cheapest return price found within the last 5 days was $1,625 on Delta (7 Aug–23 Aug).

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

To ensure you get the cheapest price possible for a flight from Region of Ontario to Sydney, you should look to book at least 64 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 $2,217, Delta can have you in Sydney from Region of Ontario in 26h. 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 cheapest airlines to fly from Region of Ontario to Sydney one-way?

    $1,074 is the cheapest one-way deal found within the past few days, from Cathay Pacific. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $1,177 and $1,272, respectively.

  • 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, April is the cheapest month in which you can book a flight from Region of Ontario to Sydney (average of $2,004). Flying from Region of Ontario to Sydney in December is currently the most expensive (average of $2,844). 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
Penrith
Katoomba
Manly
Lithgow
Cronulla
Terrigal
Randwick
Leura
Bondi Beach
Coogee

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 26 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$443Average$2,565FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,233Average$1,765FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapest$1,497Average$1,966FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Cathay PacificCheapest$1,865Average$2,640FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific 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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