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Cheap flights from Australia to Ontario from $702

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 27/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ONT
11 Mar — 18 Mar1
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 9 February 2026.

Tue 25/820:45
SYD
-
ONT
1 stop17h 43m
Multiple Airlines
Mon 7/908:00
ONT
-
SYD
1 stop17h 50m
Multiple Airlines
Deal found 8/2$1,064
Thu 10/920:45
SYD
-
ONT
1 stop17h 43m
Multiple Airlines
Sat 26/908:00
ONT
-
SYD
1 stop17h 50m
Multiple Airlines
Deal found 8/2$1,106
Mon 23/309:40
SYD
-
ONT
2 stops32h 11m
Delta
Mon 30/306:00
ONT
-
SYD
2 stops31h 50m
Delta
Deal found 5/2$1,111
Tue 3/321:40
SYD
-
ONT
1 stop19h 35m
Multiple Airlines
Tue 17/308:45
ONT
-
SYD
1 stop41h 00m
Multiple Airlines
Deal found 6/2$1,118
Wed 25/309:10
MEL
-
ONT
2 stops32h 41m
Delta
Wed 1/406:00
ONT
-
MEL
2 stops32h 50m
Delta
Deal found 7/2$1,130
Fri 28/820:45
SYD
-
ONT
1 stop17h 43m
Multiple Airlines
Wed 2/908:00
ONT
-
SYD
1 stop17h 50m
Multiple Airlines
Deal found 8/2$1,140
Tue 24/211:40
BNE
-
ONT
2 stops43h 03m
United Airlines
Tue 3/305:00
ONT
-
BNE
2 stops32h 30m
United Airlines
Deal found 6/2$1,150
Tue 9/610:30
BNE
-
ONT
1 stop24h 17m
United Airlines
Mon 22/618:53
ONT
-
BNE
1 stop18h 37m
United Airlines
Deal found 6/2$1,151
Wed 18/211:40
BNE
-
ONT
2 stops27h 10m
United Airlines
Sun 22/205:00
ONT
-
BNE
2 stops56h 30m
United Airlines
Deal found 6/2$1,153
Mon 9/211:40
BNE
-
ONT
1 stop17h 38m
United Airlines
Sun 22/218:37
ONT
-
BNE
1 stop18h 53m
United Airlines
Deal found 6/2$1,157
Tue 17/211:40
BNE
-
ONT
2 stops28h 20m
United Airlines
Sun 22/218:37
ONT
-
BNE
1 stop18h 53m
United Airlines
Deal found 8/2$1,160
Sun 22/211:40
BNE
-
ONT
1 stop29h 17m
United Airlines
Sun 1/306:09
ONT
-
BNE
1 stop31h 21m
United Airlines
Deal found 6/2$1,173

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 9 February 2026.

Round-trip from

$1,070

One-way from

$702

Popular in

December

Cheapest in

August

Average price

$1,100
6/8-31/8
  • 6/8-31/8
  • 2 total stops
  • 36h 25m total
  • Australia to Ontario
Search Deals
United Airlines
  • United Airlines
  • 21/3
  • 2 total stops
  • 27h 10m total
  • Australia to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($131 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($40 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 9 February 2026.
Use the filters below to find and compare flights from Australia to Ontario that are best for you.

Fly from

Australia

Fly to

Ontario

Route

Depart

Return

Price

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Wed 25/3

09:10-23:51

2 stops32h 41m

Ontario

Wed 1/4

06:00-08:50

2 stops32h 50m

$1,130

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Tue 24/2

11:40-17:41

1 stop24h 01m

Ontario

Tue 3/3

13:50-07:30

1 stop23h 40m

$1,150

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Wed 18/2

11:40-12:43

2 stops43h 03m

Ontario

Sun 22/2

05:00-07:30

2 stops56h 30m

$1,150

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Tue 9/6

10:30-17:47

1 stop24h 17m

Ontario

Mon 22/6

18:53-06:30

1 stop18h 37m

$1,151

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 28/4

10:20-09:56

1 stop16h 36m

Ontario

Mon 4/5

18:59-06:55

1 stop18h 56m

$1,184

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 23/3

12:10-22:36

2 stops28h 26m

Ontario

Mon 30/3

13:34-07:55

2 stops24h 21m

$1,184

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 19/2

12:10-12:38

1 stop19h 28m

Ontario

Mon 23/2

13:45-09:15

2 stops48h 30m

$1,185

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 2/3

12:10-12:38

1 stop19h 28m

Ontario

Tue 24/3

18:37-09:15

1 stop20h 38m

$1,185

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 9/3

12:10-12:18

1 stop18h 08m

Ontario

Mon 16/3

18:37-09:15

1 stop20h 38m

$1,185

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 14/5

10:20-12:22

1 stop19h 02m

Ontario

Sat 30/5

18:30-06:55

2 stops43h 25m

$1,193

Flights are sorted by cheapest return flights first.

Deals found on 6/2

Showing 1-10 of 60 results
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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

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

Currently, March is the cheapest month in which you can book a flight from Australia to Ontario (average of $772). Flying from Australia to Ontario in December is currently the most expensive (average of $919). 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.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 9 February 2026.
Check out reviews from past customers who have flown with United Airlines from Australia to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,257 reviews
Check prices

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,257 reviews
United Airlines
7.4
Good
9,257 reviews
Check prices

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 24h 01m. Your travel time can differ by up to 8h 40m. The distance between Australia and Ontario is about 11599 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 Melbourne - Ontario or Brisbane - Ontario, Sydney Kingsford Smith - 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.

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

    Currently, March is the cheapest month in which you can book a flight from Australia to Ontario (average of $772). Flying from Australia to Ontario in December is currently the most expensive (average of $919). 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

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.

Top airline flying from Australia to Ontario

Discover the top airline that operate flights from Australia to Ontario. 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 9 February 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,188Average$1,670FlexibilityNo cancel feeOn-time69%
Search United Airlines 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 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.

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