How long is the flight from Australia to Ontario?

United Airlines can get you from Australia to Ontario in just under 24h 09m. Your travel time can differ by up to . The distance between Australia and Ontario is about 12125 km. Find deals

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm. Find deals

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 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C). Find deals

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. Find deals

How far in advance should I book a flight from Australia to Ontario?

Users have found that booking a flight from Australia to Ontario at least 16 days early can save you up to 15% on average compared to booking a flight this week. If booking 16 days before your flight isn’t an option for you, users have found flights from Australia to Ontario for as little as $1,321 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,478 for flights departing within the next 3 days.

What is the cheapest month to fly from Australia to Ontario?

Flights from Australia to Ontario lean towards being more expensive in December. Prices are generally better when you fly from Australia to Ontario in May, with the cheapest ticket starting at $952.

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.

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.

$716+ Flights from Australia to Ontario

Cheap flight deals from Australia to Ontario

Round-trip from	$1,317
One-way from	$716
Popular in	December
Cheapest in	May
Average price	$1,329

United Airlines
17/9-20/9
3 total stops
67h 33m total
Australia to Ontario

Search Deals

19/9
1 total stop
21h 50m total
Australia to Ontario

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($305 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($80 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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 2 September 2025.

Mon 22/910:55MEL - ONT

1 stop23h 42mUnited Airlines

Mon 13/1018:36ONT - MEL

1 stop20h 39mUnited Airlines

Deal found 31/8$1,305

Mon 24/1112:10SYD - ONT

1 stop29h 41mUnited Airlines

Tue 6/105:05ONT - SYD

2 stops33h 10mUnited Airlines

Deal found 30/8$1,315

Thu 4/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Mon 8/918:50ONT - SYD

1 stop19h 05mUnited Airlines

Deal found 1/9$1,317

Mon 8/910:20SYD - ONT

2 stops24h 09mUnited Airlines

Sat 13/913:15ONT - SYD

2 stops48h 40mUnited Airlines

Deal found 2/9$1,318

Fri 17/1017:20SYD - ONT

1 stop21h 17mMultiple Airlines

Tue 21/1011:07ONT - SYD

1 stop34h 33mMultiple Airlines

Deal found 1/9$1,320

Thu 16/1011:55MEL - ONT

1 stop18h 18mUnited Airlines

Fri 31/1018:38ONT - MEL

1 stop20h 22mUnited Airlines

Deal found 30/8$1,344

Tue 2/910:20SYD - ONT

1 stop24h 17mUnited Airlines

Fri 12/918:38ONT - SYD

2 stops43h 17mUnited Airlines

Deal found 31/8$1,355

Fri 5/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Tue 16/905:10ONT - SYD

2 stops32h 45mUnited Airlines

Deal found 1/9$1,357

Fri 19/910:20SYD - ONT

2 stops28h 05mUnited Airlines

Sun 28/920:16ONT - SYD

1 stop17h 39mUnited Airlines

Deal found 2/9$1,358

Wed 17/910:55MEL - ONT

1 stop26h 38mUnited Airlines

Mon 13/1018:36ONT - MEL

1 stop20h 39mUnited Airlines

Deal found 1/9$1,384

Tue 9/910:55MEL - ONT

1 stop18h 18mUnited Airlines

Tue 16/913:15ONT - MEL

2 stops26h 00mUnited Airlines

Deal found 1/9$1,386

Thu 30/1021:40SYD - ONT

1 stop37h 34mHawaiian Airlines

Thu 6/1109:45ONT - SYD

1 stop39h 00mHawaiian Airlines

Deal found 1/9$1,389

Best flights from Australia to Ontario
Discover carefully curated flight deals from Australia to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 September 2025.

Wed 17/910:20SYD - ONT

2 stops24h 09mUnited Airlines

Sat 20/913:15ONT - SYD

2 stops48h 40mUnited Airlines

Deal found 31/8$1,317

Fri 17/1017:20SYD - ONT

1 stop21h 17mMultiple Airlines

Tue 21/1011:07ONT - SYD

1 stop34h 33mMultiple Airlines

Deal found 1/9$1,320

Thu 5/221:40SYD - ONT

1 stop19h 15mHawaiian Airlines

Tue 17/209:50ONT - SYD

1 stop38h 55mHawaiian Airlines

Deal found 1/9$1,369

Tue 23/910:20SYD - ONT

1 stop24h 17mUnited Airlines

Sat 27/913:15ONT - SYD

2 stops48h 40mUnited Airlines

Deal found 2/9$1,318

Sun 1/322:45PER - ONT

2 stops35h 32mQatar Airways

Wed 11/311:30ONT - PER

2 stops33h 30mQatar Airways

Deal found 1/9$2,692

Fri 31/1021:40SYD - ONT

1 stop37h 34mHawaiian Airlines

Fri 7/1109:45ONT - SYD

1 stop39h 00mHawaiian Airlines

Deal found 2/9$1,389

Fri 19/910:20SYD - ONT

2 stops28h 05mUnited Airlines

Sun 28/920:16ONT - SYD

1 stop17h 39mUnited Airlines

Deal found 2/9$1,358

Sat 7/213:00MEL - ONT

1 stop18h 14mUnited Airlines

Sun 22/215:30ONT - MEL

1 stop23h 30mUnited Airlines

Deal found 2/9$1,366

Thu 27/1113:00MEL - ONT

2 stops42h 33mUnited Airlines

Fri 5/1218:41ONT - MEL

1 stop20h 19mUnited Airlines

Deal found 2/9$1,380

Sun 19/1011:55MEL - ONT

1 stop18h 18mUnited Airlines

Mon 3/1118:38ONT - MEL

1 stop20h 22mUnited Airlines

Deal found 2/9$1,380

Tue 30/910:55MEL - ONT

2 stops26h 29mUnited Airlines

Sun 19/1013:53ONT - MEL

1 stop25h 22mUnited Airlines

Deal found 2/9$1,380

Thu 13/1113:00MEL - ONT

1 stop23h 34mUnited Airlines

Mon 24/1118:38ONT - MEL

1 stop20h 22mUnited Airlines

Deal found 2/9$1,380

Last-minute flights from Australia to Ontario
Discover last-minute flight deals from Australia to Ontario. Data last updated 2 September 2025 and is based on user searches.

Sun 7/910:55MEL - ONT

1 stop18h 18mUnited Airlines

Sun 14/918:50ONT - MEL

1 stop20h 25mUnited Airlines

Deal found 31/8$1,344

Sun 7/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Sun 14/918:50ONT - SYD

1 stop19h 05mUnited Airlines

Deal found 1/9$1,357

Sun 7/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Thu 11/918:50ONT - SYD

1 stop19h 05mUnited Airlines

Deal found 31/8$1,467

Sun 7/910:55MEL - ONT

1 stop18h 18mUnited Airlines

Thu 11/913:42ONT - MEL

1 stop25h 33mUnited Airlines

Deal found 31/8$1,545

Sun 7/910:55MEL - ONT

1 stop18h 18mUnited Airlines

Sun 21/913:42ONT - MEL

2 stops27h 53mUnited Airlines

Deal found 2/9$1,728

Mon 8/910:20SYD - ONT

2 stops24h 09mUnited Airlines

Sat 13/913:15ONT - SYD

2 stops48h 40mUnited Airlines

Deal found 2/9$1,318

Mon 8/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Fri 12/918:38ONT - SYD

2 stops43h 17mUnited Airlines

Deal found 31/8$1,392

Tue 9/910:55MEL - ONT

1 stop18h 18mUnited Airlines

Tue 16/918:50ONT - MEL

1 stop20h 25mUnited Airlines

Deal found 1/9$1,386

Wed 10/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Sun 14/918:50ONT - SYD

1 stop19h 05mUnited Airlines

Deal found 31/8$1,317

Wed 10/910:20SYD - ONT

2 stops27h 23mUnited Airlines

Fri 19/918:38ONT - SYD

2 stops43h 17mUnited Airlines

Deal found 31/8$1,355

Mon 20/1010:30BNE - ONT

1 stop24h 10mUnited Airlines

Sun 2/1118:38ONT - BNE

1 stop18h 52mUnited Airlines

Deal found 31/8$1,441

Tue 21/1010:30BNE - ONT

1 stop18h 43mUnited Airlines

Sat 6/1213:34ONT - BNE

2 stops47h 56mUnited Airlines

Deal found 30/8$1,534

One-way flights from Australia to Ontario
Search for one-way flight options from Australia to Ontario. Find affordable one-way fares based on user searches. Data last updated 2 September 2025.

Fri 19/916:20SYD - ONT

1 stop21h 50mMultiple Airlines

Deal found 2/9$716

Wed 15/1007:30BNE - ONT

2 stops30h 07mMultiple Airlines

Deal found 31/8$776

Sat 15/1119:00MEL - ONT

3 stops47h 40mMultiple Airlines

Deal found 2/9$788

Mon 26/113:00MEL - ONT

1 stop18h 14mUnited Airlines

Deal found 1/9$809

Sun 7/910:20SYD - ONT

2 stops24h 09mUnited Airlines

Deal found 2/9$819

Tue 11/1113:00MEL - ONT

2 stops26h 44mUnited Airlines

Deal found 2/9$819

Mon 17/1111:50SYD - ONT

1 stop28h 59mUnited Airlines

Deal found 1/9$822

Sat 25/1011:55MEL - ONT

2 stops42h 38mUnited Airlines

Deal found 1/9$823

Sat 15/1113:00MEL - ONT

2 stops26h 44mUnited Airlines

Deal found 2/9$825

Mon 13/1011:20SYD - ONT

2 stops52h 04mUnited Airlines

Deal found 2/9$831

Mon 20/1011:55MEL - ONT

2 stops51h 29mUnited Airlines

Deal found 1/9$832

Tue 2/1213:00MEL - ONT

2 stops51h 49mUnited Airlines

Deal found 2/9$834

Fly from

Fly to

Route

Depart

Return

Price

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 17/9

10:20-17:29

2 stops24h 09m

Ontario

Sat 20/9

13:15-06:55

2 stops48h 40m

$1,317

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 23/9

10:20-17:37

1 stop24h 17m

Ontario

Sat 27/9

13:15-06:55

2 stops48h 40m

$1,318

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 17/10

17:20-20:37

1 stop21h 17m

Ontario

Tue 21/10

11:07-15:40

1 stop34h 33m

$1,320

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 19/9

10:20-21:25

2 stops28h 05m

Ontario

Sun 28/9

20:16-06:55

1 stop17h 39m

$1,358

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Sat 7/2

13:00-12:14

1 stop18h 14m

Ontario

Sun 22/2

15:30-10:00

1 stop23h 30m

$1,366

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 5/2

21:40-21:55

1 stop19h 15m

Ontario

Tue 17/2

09:50-19:45

1 stop38h 55m

$1,369

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Thu 27/11

13:00-12:33

2 stops42h 33m

Ontario

Fri 5/12

18:41-10:00

1 stop20h 19m

$1,380

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Sun 19/10

11:55-12:13

1 stop18h 18m

Ontario

Mon 3/11

18:38-10:00

1 stop20h 22m

$1,380

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Tue 30/9

10:55-20:24

2 stops26h 29m

Ontario

Sun 19/10

13:53-09:15

1 stop25h 22m

$1,380

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Thu 13/11

13:00-17:34

1 stop23h 34m

Ontario

Mon 24/11

18:38-10:00

1 stop20h 22m

$1,380

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 60 results

...

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 time of day to fly from AU to ONT?

When flying from Australia to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Ontario

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

8,937 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

United Airlines

7.4

Good

8,937 reviews

United Airlines

7.4

Good

8,937 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Apr 2025

TPE - SFO

Related info for your journey

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?
United Airlines can get you from Australia to Ontario in just under 24h 09m. Your travel time can differ by up to . The distance between Australia and Ontario is about 12125 km.
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

Alternative routes for Australia to Ontario

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Top airline flying from Australia to Ontario

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,069	Average$1,760	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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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Cheap flights from Australia to Ontario from $716

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 19/9. Fares are subject to change and may not be available on all flights or dates of travel.

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 2 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Australia to Ontario

Cheapest flights from Australia to OntarioExplore 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 September 2025.

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 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Australia to Ontario that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Australia to Ontario

What is the cheapest time of day to fly from AU to ONT?

Find hourly flight availability from Australia to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 September 2025.

Reviews of airlines servicing Ontario

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.

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?

How long is the flight from Australia to Ontario?

What are the most popular routes from Australia to Ontario?

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

How can I find direct flights from Australia to Ontario?

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

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.

Alternative routes for Australia to Ontario

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

Top airline flying from Australia to Ontario

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?

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

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

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

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Travel Smart

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 September 2025.