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Ontario

$528+ Cheap flights from Australia to Ontario (ONT)

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ONT
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Australia to Ontario

Keep the following information in mind while searching for Australia to Ontario flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$815
(Delta)

One-way from

$528
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$771
Provider with most accurate pricing for Sydney Kingsford Smith-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Los Angeles flights.
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From Australia to Ontario
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One-way flight from Australia to Ontario
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Highest demand for flights based on searches. 14% potential increase in price ($140 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Australia to Ontario

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 March 28, 2025.

This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1710:30 amBNE - ONT
1 stop29h 25mUnited Airlines
Thu 5/16:48 pmONT - BNE
1 stop18h 42mUnited Airlines
Deal found 3/26$899
This Kissandfly.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1110:20 amSYD - ONT
1 stop24h 19mLufthansa
Wed 6/186:41 pmONT - SYD
1 stop19h 14mLufthansa
Deal found 3/26$919
This CheapTicketsDeal deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTicketsDeal is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/259:40 pmSYD - ONT
1 stop17h 10mHawaiian Airlines
Sun 6/89:50 amONT - SYD
1 stop40h 55mHawaiian Airlines
Deal found 3/27$958
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2811:50 amSYD - ONT
2 stops28h 55mUnited Airlines
Sat 4/121:35 pmONT - SYD
2 stops48h 20mUnited Airlines
Deal found 3/27$966
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2812:00 pmMEL - ONT
2 stops50h 57mUnited Airlines
Fri 4/46:39 pmONT - MEL
1 stop20h 36mUnited Airlines
Deal found 3/27$997
This Aunt Betty deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/119:50 pmMEL - ONT
1 stop37h 10mChina Airlines
Sat 5/1712:10 amONT - MEL
1 stop41h 30mChina Airlines
Deal found 3/27$1,074
This Aunt Betty deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/110:10 pmSYD - ONT
1 stop36h 50mChina Airlines
Mon 5/1912:10 amONT - SYD
1 stop41h 35mChina Airlines
Deal found 3/27$1,089
This Trip.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1212:55 pmMEL - ONT
2 stops35h 34mMultiple Airlines
Sat 4/262:27 pmONT - MEL
2 stops28h 48mMultiple Airlines
Deal found 3/27$1,136
This China Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:50 pmBNE - ONT
1 stop36h 10mChina Airlines
Wed 10/2212:10 amONT - BNE
1 stop41h 25mChina Airlines
Deal found 3/27$1,153
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/14:20 pmSYD - ONT
1 stop22h 30mMultiple Airlines
Tue 5/203:05 pmONT - SYD
2 stops27h 40mMultiple Airlines
Deal found 3/27$1,161
This Bravofly deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/148:45 pmBNE - ONT
2 stops62h 15mMultiple Airlines
Sat 5/1712:10 amONT - BNE
1 stop41h 25mMultiple Airlines
Deal found 3/27$1,236
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2910:05 amSYD - ONT
2 stops31h 38mDelta
Mon 11/109:55 amONT - SYD
2 stops27h 40mDelta
Deal found 3/26$1,252

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated March 28, 2025.
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

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Tue 5/6

10:30 am-2:25 pm

1 stop20h 55m

Ontario

Sun 5/18

1:20 pm-6:30 am

2 stops24h 10m

$833

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Mon 4/28

10:55 am-11:05 am

1 stop17h 10m

Ontario

Sun 5/11

6:48 pm-8:15 am

1 stop20h 27m

$852

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 6/11

10:20 am-5:39 pm

1 stop24h 19m

Ontario

Wed 6/18

6:41 pm-6:55 am

1 stop19h 14m

$919

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 4/25

9:40 pm-9:50 pm

1 stop17h 10m

Ontario

Sun 6/8

9:50 am-7:45 pm

1 stop40h 55m

$958

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Sun 5/11

9:50 pm-6:00 pm

1 stop37h 10m

Ontario

Sat 5/17

12:10 am-10:40 am

1 stop41h 30m

$1,074

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 5/1

10:10 pm-6:00 pm

1 stop36h 50m

Ontario

Mon 5/19

12:10 am-10:45 am

1 stop41h 35m

$1,089

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Sat 5/10

8:05 pm-11:50 am

2 stops32h 45m

Ontario

Sat 5/17

7:30 am-5:25 am

2 stops28h 55m

$1,101

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Tue 6/3

10:50 pm-6:00 pm

1 stop36h 10m

Ontario

Mon 6/23

12:10 am-10:35 am

1 stop41h 25m

$1,111

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 9/9

10:20 am-12:13 pm

1 stop18h 53m

Ontario

Tue 9/23

6:36 pm-6:55 am

1 stop19h 19m

$1,129

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 5/1

4:20 pm-9:50 pm

1 stop22h 30m

Ontario

Tue 5/20

3:05 pm-11:45 am

2 stops27h 40m

$1,161

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 43 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 round-trip 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, August is the cheapest month in which you can book a flight from Australia to Ontario (average of $246). Flying from Australia to Ontario in March is currently the most expensive (average of $326). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 March 28, 2025.
Get a feel of what it's like to fly with Japan Airlines, China Airlines and Delta from Australia to Ontario by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Boarding

8.4

Overall

8.3

Food

7.7

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Japan Airlines
8.3
Very good
1,440 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Boarding

8.4

Overall

8.3

Food

7.7

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
China Airlines
8.2
Very good
722 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Boarding

8.4

Overall

8.3

Food

7.7

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Delta
8.0
Very good
7,896 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Boarding

8.4

Overall

8.3

Food

7.7

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Hawaiian Airlines
7.9
Good
2,336 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Boarding

8.4

Overall

8.3

Food

7.7

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.
Qatar Airways
7.4
Good
3,538 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Boarding

8.4

Overall

8.3

Food

7.7

Comfort

8.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

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?

    Ontario (ONT) is the airport you will fly into if you book a flight from Australia to Ontario. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.

  • What are the cheapest airlines to fly from Australia to Ontario one-way?

    One-way options have recently been found by users for as low as $600 on Hawaiian Airlines. Other airlines that offer cheap prices include China Airlines from $697 and United Airlines from $739 one-way.

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

    The most popular flight routes from Australia to Ontario are Sydney Kingsford Smith - Ontario, Melbourne - Ontario and Brisbane - 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 vacation 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, August is the cheapest month in which you can book a flight from Australia to Ontario (average of $246). Flying from Australia to Ontario in March is currently the most expensive (average of $326). 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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Alternative routes for Australia to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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