Find flights
When to book
FAQs

Cheap flights from Australia to Ontario from $695

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.
SYD — ONT
1 Aug — 8 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Australia to Ontario
Explore the most affordable flight options available from Australia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2026.

Thu 13/820:45
SYD
-
ONT
1 stop18h 00m
Multiple Airlines
Sun 23/809:31
ONT
-
SYD
1 stop40h 19m
Multiple Airlines
Deal found 2/7$1,047
Thu 6/820:45
SYD
-
ONT
1 stop18h 00m
Multiple Airlines
Tue 18/809:11
ONT
-
SYD
1 stop40h 39m
Multiple Airlines
Deal found 30/6$1,050
Thu 15/1020:45
SYD
-
ONT
1 stop18h 37m
Multiple Airlines
Wed 28/1007:00
ONT
-
SYD
1 stop18h 45m
Multiple Airlines
Deal found 27/6$1,063
Thu 6/820:45
SYD
-
ONT
1 stop18h 00m
Multiple Airlines
Wed 14/1007:00
ONT
-
SYD
1 stop17h 50m
Multiple Airlines
Deal found 29/6$1,088
Tue 18/820:45
SYD
-
ONT
1 stop18h 00m
Multiple Airlines
Fri 11/909:31
ONT
-
SYD
1 stop40h 19m
Multiple Airlines
Deal found 30/6$1,089
Thu 6/809:15
SYD
-
ONT
2 stops31h 19m
Delta
Tue 18/813:06
ONT
-
SYD
2 stops24h 44m
Delta
Deal found 1/7$1,127
Tue 20/1015:15
BNE
-
ONT
2 stops23h 07m
Multiple Airlines
Wed 28/1007:00
ONT
-
BNE
2 stops30h 35m
Multiple Airlines
Deal found 29/6$1,149
Thu 10/920:45
SYD
-
ONT
1 stop18h 25m
Multiple Airlines
Wed 30/909:31
ONT
-
SYD
1 stop40h 19m
Multiple Airlines
Deal found 1/7$1,186
Mon 20/710:20
SYD
-
ONT
1 stop18h 52m
United Airlines
Wed 5/818:39
ONT
-
SYD
1 stop19h 16m
United Airlines
Deal found 28/6$1,201
Mon 27/710:20
SYD
-
ONT
1 stop29h 17m
Lufthansa
Tue 11/813:56
ONT
-
SYD
1 stop23h 59m
Lufthansa
Deal found 29/6$1,202
Mon 27/710:20
SYD
-
ONT
1 stop18h 52m
United Airlines
Tue 11/813:56
ONT
-
SYD
1 stop23h 59m
United Airlines
Deal found 2/7$1,205
Thu 5/1111:50
SYD
-
ONT
1 stop30h 03m
United Airlines
Sun 8/1105:00
ONT
-
SYD
2 stops33h 20m
United Airlines
Deal found 29/6$1,207

Find flight deals from Australia to Ontario

Keep the following information in mind while searching for Australia to Ontario flight deals. Data was last updated 2 July 2026.

Round-trip from

$1,050

One-way from

$695

Popular in

December

Cheapest in

August

Average price

$1,267
6/8-18/8
  • 6/8-18/8
  • 2 total stops
  • 58h 39m total
  • Australia to Ontario
Search Deals
United Airlines
  • United Airlines
  • 19/8
  • 1 total stop
  • 24h 56m total
  • Australia to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($125 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($41 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 Australia 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 2 July 2026.
Use the filters below to find and compare flights from Australia 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

Thu 6/8

09:15-23:34

2 stops31h 19m

Ontario

Tue 18/8

13:06-06:50

2 stops24h 44m

$1,127

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 20/7

10:20-12:12

1 stop18h 52m

Ontario

Wed 5/8

18:39-06:55

1 stop19h 16m

$1,211

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 24/8

10:20-12:12

1 stop18h 52m

Ontario

Fri 28/8

19:13-06:55

1 stop18h 42m

$1,256

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 17/8

10:20-20:01

1 stop26h 41m

Ontario

Fri 21/8

19:13-06:55

1 stop18h 42m

$1,257

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 13/9

10:20-12:12

1 stop18h 52m

Ontario

Sun 27/9

18:32-06:55

1 stop19h 23m

$1,257

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 25/12

11:50-12:20

1 stop19h 30m

Ontario

Thu 18/2

18:53-09:20

1 stop19h 27m

$1,307

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Tue 3/11

12:45-17:55

1 stop24h 10m

Ontario

Wed 18/11

18:36-10:30

1 stop20h 54m

$1,336

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Tue 8/9

10:55-12:50

2 stops42h 55m

Ontario

Tue 29/9

06:00-08:15

2 stops57h 15m

$1,336

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Wed 4/11

12:45-12:01

1 stop18h 16m

Ontario

Wed 25/11

16:04-10:30

1 stop23h 26m

$1,337

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Thu 6/8

10:55-21:55

2 stops28h 00m

Ontario

Sun 9/8

18:39-08:15

1 stop20h 36m

$1,337

Flights are sorted by cheapest return flights first.

Deals found on 28/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Australia to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Australia 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 Australia to Ontario
No data available for this route at this time. Please check back soon.

Related info for your journey

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

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Australia. Ontario is conveniently located just 4.9 km from Ontario’s city centre.

  • How long is the flight from Australia to Ontario?

    Delta and United Airlines can get you from Australia to Ontario in just under 18h 52m. Your travel time can differ by up to 12h 27m. The distance between Australia and Ontario is about 12125 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Australia to Ontario?

    While some choose either Sydney Kingsford Smith - Ontario or Brisbane - Ontario, Melbourne - Ontario is the most popular route from Australia to Ontario.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Australia 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 Australia to Ontario?

Cheapflights makes it easy to find Australia 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 Australia to Ontario?

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 Ontario from Australia.

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

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

Can Cheapflights notify me if prices for flights from Australia to Ontario become cheaper?

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

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.