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Cheap flights from Sydney to Ontario from $811

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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ONT
10 May — 17 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Ontario
Explore the most affordable flight options available from Sydney to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 April 2026.

Tue 15/920:45
SYD
-
ONT
1 stop17h 35m
Multiple Airlines
Tue 13/1009:00
ONT
-
SYD
1 stop39h 50m
Multiple Airlines
Deal found 8/4$1,342
Fri 1/520:45
SYD
-
ONT
1 stop17h 25m
Multiple Airlines
Wed 13/509:40
ONT
-
SYD
1 stop40h 10m
Multiple Airlines
Deal found 9/4$1,368
Tue 30/620:45
SYD
-
ONT
1 stop18h 00m
Multiple Airlines
Fri 21/807:20
ONT
-
SYD
1 stop18h 30m
Multiple Airlines
Deal found 9/4$1,391
Sun 24/520:45
SYD
-
ONT
1 stop18h 32m
Multiple Airlines
Sun 31/509:40
ONT
-
SYD
1 stop40h 10m
Multiple Airlines
Deal found 9/4$1,395
Thu 23/420:45
SYD
-
ONT
1 stop17h 25m
Multiple Airlines
Fri 7/809:11
ONT
-
SYD
1 stop40h 39m
Multiple Airlines
Deal found 8/4$1,409
Tue 21/420:45
SYD
-
ONT
1 stop19h 14m
Multiple Airlines
Wed 3/609:40
ONT
-
SYD
1 stop40h 10m
Multiple Airlines
Deal found 9/4$1,439
Wed 6/510:20
SYD
-
ONT
1 stop16h 21m
United Airlines
Wed 27/513:18
ONT
-
SYD
2 stops24h 37m
United Airlines
Deal found 5/4$1,484
Mon 27/410:20
SYD
-
ONT
1 stop16h 36m
United Airlines
Tue 9/618:39
ONT
-
SYD
1 stop19h 16m
United Airlines
Deal found 7/4$1,487
Mon 27/410:20
SYD
-
ONT
1 stop19h 00m
United Airlines
Sun 10/518:59
ONT
-
SYD
1 stop18h 56m
United Airlines
Deal found 8/4$1,491
Tue 9/610:20
SYD
-
ONT
1 stop18h 52m
United Airlines
Tue 16/618:39
ONT
-
SYD
1 stop19h 16m
United Airlines
Deal found 8/4$1,493
Thu 16/720:45
SYD
-
ONT
1 stop18h 00m
Multiple Airlines
Thu 17/907:20
ONT
-
SYD
1 stop18h 30m
Multiple Airlines
Deal found 8/4$1,494

Find flight deals from Sydney to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 April 2026.

Round-trip from

$1,342

One-way from

$811

Popular in

December

Cheapest in

August

Average price

$1,291
15/9-13/10
  • 15/9-13/10
  • 2 total stops
  • 57h 25m total
  • Sydney to Ontario
Search Deals
23/4
  • 23/4
  • 1 total stop
  • 17h 25m total
  • Sydney to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($132 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($38 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to Ontario 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 10 April 2026.
Use the filters below to find and compare flights from Sydney to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 20/5

10:20-09:41

1 stop16h 21m

Ontario

Wed 3/6

18:39-06:55

1 stop19h 16m

$1,515

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 11/6

10:20-12:12

1 stop18h 52m

Ontario

Thu 25/6

18:39-06:55

1 stop19h 16m

$1,586

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 24/4

20:45-21:10

1 stop17h 25m

Ontario

Tue 19/5

16:03-18:50

2 stops33h 47m

$2,030

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 5/5

20:45-21:10

1 stop17h 25m

Ontario

Tue 26/5

16:03-18:50

2 stops33h 47m

$2,043

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 24/4

10:20-09:56

1 stop16h 36m

Ontario

Sun 3/5

13:40-06:55

2 stops24h 15m

$2,157

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 12/5

20:45-18:47

2 stops39h 02m

Ontario

Fri 22/5

09:40-18:50

1 stop40h 10m

$2,269
Fastest return journey

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 23/4

10:20-09:56

1 stop16h 36m

Ontario

Wed 6/5

18:59-06:55

1 stop18h 56m

$2,323

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 20/9

10:20-12:12

1 stop18h 52m

Ontario

Sun 25/10

18:53-09:15

1 stop20h 22m

$2,388

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 27/4

22:10-18:00

1 stop36h 50m

Ontario

Sat 9/5

00:10-14:25

2 stops45h 15m

$2,577

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 27/5

18:30-18:00

2 stops40h 30m

Ontario

Tue 16/6

00:10-10:45

1 stop41h 35m

$2,642

Flights are sorted by cheapest return flights first.

Deals found on 5/4

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Sydney to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Sydney 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 Sydney to Ontario

What is the cheapest month to book a flight from Sydney to Ontario?

Currently, June is the cheapest month in which you can book a flight from Sydney to Ontario (average of $808). Flying from Sydney to Ontario in December is currently the most expensive (average of $928). 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.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Ontario. 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 Sydney to Ontario?

    United Airlines can get you from Sydney to Ontario in just under 16h 21m. Your travel time can differ by up to . There are 12125 km between Sydney and Ontario.

  • Can I find deals for flights from Sydney to Ontario that include hotel bookings?

    Yes. In addition to deals on Sydney to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Ontario.

  • Can I find deals for business class flights from Sydney to Ontario?

    Yes. Cheapflights offers flight deals from Sydney to Ontario 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 Sydney to Ontario?

    Currently, June is the cheapest month in which you can book a flight from Sydney to Ontario (average of $808). Flying from Sydney to Ontario in December is currently the most expensive (average of $928). 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

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How does Cheapflights help users find flights from Sydney to Ontario?

Cheapflights makes it easy to find Sydney to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Sydney to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sydney to Ontario, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Sydney to Ontario 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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