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Ontario

$468+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ONT
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$835
(Delta)

One-way from

$468
(United Airlines)

Popular in

December

Cheapest in

May

Average price

$764
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. 13% potential increase in price ($131 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Delta deal was found by Cheapflights users on 5/1. 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.
Sun 6/19:25 amSYD - ONT
2 stops31h 17mDelta
Mon 6/166:00 amONT - SYD
2 stops31h 35mDelta
Deal found 5/1$835
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Sun 6/110:20 amSYD - ONT
1 stop29h 25mUnited Airlines
Sat 6/146:41 pmONT - SYD
1 stop19h 14mUnited Airlines
Deal found 5/1$876
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Wed 11/1211:40 amBNE - ONT
1 stop16h 19mUnited Airlines
Wed 11/261:00 pmONT - BNE
2 stops24h 30mUnited Airlines
Deal found 5/1$920
This BestPriceTravel deal was found by Cheapflights users on 4/30. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/39:40 pmSYD - ONT
1 stop17h 10mHawaiian Airlines
Wed 5/79:45 amONT - SYD
1 stop41h 00mHawaiian Airlines
Deal found 4/30$922
This BestPriceTravel deal was found by Cheapflights users on 5/1. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/29:40 pmSYD - ONT
1 stop17h 10mAlaska Airlines
Tue 5/69:45 amONT - SYD
1 stop41h 00mAlaska Airlines
Deal found 5/1$930
This Kissandfly.com deal was found by Cheapflights users on 4/30. 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.
Sun 6/110:20 amSYD - ONT
1 stop18h 54mLufthansa
Sat 6/146:41 pmONT - SYD
1 stop19h 14mLufthansa
Deal found 4/30$987
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Tue 8/1210:55 amMEL - ONT
2 stops23h 30mUnited Airlines
Wed 8/276:36 pmONT - MEL
1 stop20h 39mUnited Airlines
Deal found 5/1$1,112
This Booking.com deal was found by Cheapflights users on 4/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/299:50 pmMEL - ONT
1 stop37h 50mChina Airlines
Sat 9/1312:45 amONT - MEL
1 stop40h 55mChina Airlines
Deal found 4/29$1,123
This Bravofly deal was found by Cheapflights users on 4/29. 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.
Sun 10/2610:10 pmSYD - ONT
1 stop37h 40mChina Airlines
Sat 11/111:45 pmONT - SYD
1 stop42h 25mChina Airlines
Deal found 4/29$1,132
This Booking.com deal was found by Cheapflights users on 5/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1510:50 pmBNE - ONT
1 stop36h 50mChina Airlines
Mon 8/1812:45 amONT - BNE
1 stop40h 50mChina Airlines
Deal found 5/1$1,164
This Trip.com deal was found by Cheapflights users on 5/1. 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.
Wed 5/1411:15 pmPER - ONT
2 stops33h 45mMultiple Airlines
Thu 9/412:45 amONT - PER
2 stops38h 05mMultiple Airlines
Deal found 5/1$1,185
This China Airlines deal was found by Cheapflights users on 5/1. 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.
Mon 7/146:15 pmBNE - ONT
2 stops41h 25mMultiple Airlines
Mon 8/1812:45 amONT - BNE
1 stop40h 50mMultiple Airlines
Deal found 5/1$1,301

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 May 1, 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

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 6/1

9:25 am-11:42 pm

2 stops31h 17m

Ontario

Mon 6/16

6:00 am-6:35 am

2 stops31h 35m

$835

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 6/1

10:20 am-10:45 pm

1 stop29h 25m

Ontario

Sat 6/14

6:41 pm-6:55 am

1 stop19h 14m

$876

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 6/1

10:20 am-12:14 pm

1 stop18h 54m

Ontario

Sat 6/14

6:41 pm-6:55 am

1 stop19h 14m

$987

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 10/14

9:40 pm-9:55 pm

1 stop18h 15m

Ontario

Thu 10/23

9:50 am-7:45 pm

1 stop39h 55m

$1,049

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 5/13

9:40 pm-9:50 pm

1 stop17h 10m

Ontario

Sun 6/1

9:50 am-7:45 pm

1 stop40h 55m

$1,088

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Tue 8/12

10:55 am-5:25 pm

2 stops23h 30m

Ontario

Wed 8/27

6:36 pm-8:15 am

1 stop20h 39m

$1,112

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Fri 8/29

9:50 pm-6:40 pm

1 stop37h 50m

Ontario

Sat 9/13

12:45 am-10:40 am

1 stop40h 55m

$1,123

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 10/26

10:10 pm-5:50 pm

1 stop37h 40m

Ontario

Sat 11/1

11:45 pm-12:10 pm

1 stop42h 25m

$1,132

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Tue 7/15

10:50 pm-6:40 pm

1 stop36h 50m

Ontario

Mon 8/18

12:45 am-10:35 am

1 stop40h 50m

$1,164

PerthOntario

PER - ONT

PERONT

Perth

Wed 5/14

11:15 pm-6:00 pm

2 stops33h 45m

Ontario

Thu 9/4

12:45 am-5:50 am

2 stops38h 05m

$1,185

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 44 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 $328). 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 May 1, 2025.
Get a feel of what it's like to fly with Japan Airlines, China Airlines and Alaska Airlines 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
1,464 reviews

Food

7.7

Entertainment

7.8

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Japan Airlines
8.3
Very good
1,464 reviews
Japan Airlines
8.3
Very good
1,464 reviews

Food

7.7

Entertainment

7.8

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
China Airlines
8.3
Very good
732 reviews
Japan Airlines
8.3
Very good
1,464 reviews

Food

7.7

Entertainment

7.8

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Alaska Airlines
8.0
Very good
9,972 reviews
Japan Airlines
8.3
Very good
1,464 reviews

Food

7.7

Entertainment

7.8

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Delta
8.0
Very good
7,934 reviews
Japan Airlines
8.3
Very good
1,464 reviews

Food

7.7

Entertainment

7.8

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority
Hawaiian Airlines
7.9
Good
2,409 reviews
Japan Airlines
8.3
Very good
1,464 reviews

Food

7.7

Entertainment

7.8

Boarding

8.4

Crew

8.7

Overall

8.3

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

mark,Nov 2024

YVR - NRT

I like that flight because super nice and friendly. I’m a senior and quick not comfortable to ask what I need help. But would be nicer if they check us if we need any more help because we are not able to leave our seat. However Japan Aniline is my on top priority

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 $468 on United Airlines. Other airlines that offer cheap prices include Alaska Airlines from $683 and China Airlines from $718 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 $328). 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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See prices for flight routes from nearby airports that may be better suited for you.
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