How long is the flight from Australia to Ontario?

Hawaiian Airlines and United Airlines can get you from Australia to Ontario in just under 18h 53m. Your travel time can differ by up to 22m. The distance between Australia and Ontario is about 12125 km. Both multi-stop and direct flights can be found to your destination and back. 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 Melbourne - Ontario or Brisbane - Ontario, Sydney Kingsford Smith - 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 $1,232 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 $1,373 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 February, with the cheapest ticket starting at $896.

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.

$777+ Flights from Australia to Ontario

Cheap flight deals from Australia to Ontario

Round-trip from	$1,054
One-way from	$777
Popular in	December
Cheapest in	February
Average price	$1,283

Alaska Airlines
28/10-5/11
2 total stops
76h 34m total
Australia to Ontario

Search Deals

Delta
30/10
2 total stops
24h 13m total
Australia to Ontario

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($277 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($72 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 15 September 2025.

Tue 28/1021:40SYD - ONT

1 stop37h 34mAlaska Airlines

Wed 5/1109:45ONT - SYD

1 stop39h 00mAlaska Airlines

Deal found 15/9$1,054

Thu 2/1010:30BNE - ONT

1 stop18h 43mUnited Airlines

Wed 15/1018:36ONT - BNE

1 stop18h 54mUnited Airlines

Deal found 14/9$1,126

Mon 6/1011:20SYD - ONT

1 stop18h 53mUnited Airlines

Sun 19/1018:36ONT - SYD

1 stop19h 19mUnited Airlines

Deal found 15/9$1,136

Wed 29/1011:50SYD - ONT

1 stop27h 59mUnited Airlines

Wed 5/1118:38ONT - SYD

1 stop19h 37mUnited Airlines

Deal found 14/9$1,138

Fri 14/1121:40SYD - ONT

1 stop38h 34mAlaska Airlines

Tue 18/1109:45ONT - SYD

1 stop39h 00mAlaska Airlines

Deal found 15/9$1,168

Mon 3/1113:00MEL - ONT

1 stop18h 37mUnited Airlines

Mon 17/1118:38ONT - MEL

1 stop20h 22mUnited Airlines

Deal found 14/9$1,181

Mon 20/1011:55MEL - ONT

1 stop18h 18mUnited Airlines

Mon 3/1118:38ONT - MEL

1 stop20h 22mUnited Airlines

Deal found 13/9$1,198

Tue 18/1111:40BNE - ONT

1 stop23h 54mUnited Airlines

Mon 29/1210:42ONT - BNE

1 stop26h 48mUnited Airlines

Deal found 15/9$1,198

Tue 28/1012:00MEL - ONT

1 stop23h 34mUnited Airlines

Wed 5/1118:38ONT - MEL

1 stop20h 22mUnited Airlines

Deal found 15/9$1,199

Tue 30/910:55MEL - ONT

1 stop28h 57mUnited Airlines

Mon 20/1013:53ONT - MEL

1 stop25h 22mUnited Airlines

Deal found 14/9$1,201

Sat 4/1010:20SYD - ONT

2 stops52h 04mUnited Airlines

Sun 28/1205:05ONT - SYD

2 stops30h 15mUnited Airlines

Deal found 15/9$1,213

Wed 29/1010:40BNE - ONT

1 stop29h 11mUnited Airlines

Wed 5/1118:38ONT - BNE

1 stop18h 52mUnited Airlines

Deal found 14/9$1,216

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 15 September 2025.

Sun 15/221:40SYD - ONT

1 stop19h 15mHawaiian Airlines

Sun 15/309:50ONT - SYD

1 stop39h 55mHawaiian Airlines

Deal found 15/9$1,103

Mon 6/1011:20SYD - ONT

1 stop18h 53mUnited Airlines

Sun 19/1018:36ONT - SYD

1 stop19h 19mUnited Airlines

Deal found 13/9$1,136

Tue 17/221:40SYD - ONT

1 stop19h 15mAlaska Airlines

Tue 17/309:50ONT - SYD

1 stop39h 55mAlaska Airlines

Deal found 14/9$1,204

Tue 14/1005:10PER - ONT

2 stops27h 50mMultiple Airlines

Mon 20/1000:10ONT - PER

2 stops34h 00mMultiple Airlines

Deal found 14/9$2,092

Thu 12/312:10SYD - ONT

2 stops42h 23mUnited Airlines

Mon 16/305:40ONT - SYD

2 stops57h 35mUnited Airlines

Deal found 14/9$1,138

Tue 11/1112:10SYD - ONT

2 stops43h 21mUnited Airlines

Sun 11/106:00ONT - SYD

1 stop29h 20mUnited Airlines

Deal found 13/9$1,138

Tue 14/1022:45PER - ONT

2 stops40h 18mQatar Airways

Tue 21/1006:00ONT - PER

2 stops45h 40mQatar Airways

Deal found 14/9$2,674

Wed 29/1012:10SYD - ONT

1 stop28h 41mUnited Airlines

Sun 2/1105:05ONT - SYD

2 stops57h 10mUnited Airlines

Deal found 14/9$1,138

Thu 23/1011:20SYD - ONT

1 stop24h 20mUnited Airlines

Tue 9/1213:50ONT - SYD

1 stop24h 25mUnited Airlines

Deal found 14/9$1,138

Wed 12/1112:10SYD - ONT

2 stops28h 39mUnited Airlines

Sun 11/106:00ONT - SYD

1 stop29h 20mUnited Airlines

Deal found 13/9$1,138

Thu 13/1112:10SYD - ONT

1 stop24h 24mUnited Airlines

Mon 17/1113:29ONT - SYD

2 stops46h 31mUnited Airlines

Deal found 14/9$1,138

Tue 14/1010:30BNE - ONT

1 stop18h 43mUnited Airlines

Sat 18/1006:00ONT - BNE

2 stops55h 30mUnited Airlines

Deal found 14/9$1,198

Last-minute flights from Australia to Ontario
Discover last-minute flight deals from Australia to Ontario. Data last updated 15 September 2025 and is based on user searches.

Tue 16/910:30BNE - ONT

1 stop24h 07mUnited Airlines

Sat 20/907:00ONT - BNE

2 stops54h 30mUnited Airlines

Deal found 15/9$1,498

Sat 20/910:20SYD - ONT

2 stops27h 23mUnited Airlines

Sat 27/913:15ONT - SYD

2 stops48h 40mUnited Airlines

Deal found 15/9$1,348

Sat 20/910:20SYD - ONT

1 stop27h 13mUnited Airlines

Wed 24/918:50ONT - SYD

1 stop19h 05mUnited Airlines

Deal found 15/9$1,384

Sun 21/910:20SYD - ONT

1 stop24h 17mUnited Airlines

Thu 25/905:05ONT - SYD

2 stops32h 50mUnited Airlines

Deal found 14/9$1,459

Sun 21/910:55MEL - ONT

1 stop18h 18mUnited Airlines

Wed 24/918:50ONT - MEL

1 stop20h 25mUnited Airlines

Deal found 13/9$1,532

Sun 21/910:30BNE - ONT

2 stops43h 02mUnited Airlines

Thu 25/918:27ONT - BNE

2 stops43h 03mUnited Airlines

Deal found 14/9$1,646

Mon 22/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Mon 29/918:36ONT - SYD

1 stop19h 19mUnited Airlines

Deal found 15/9$1,309

Mon 22/910:30BNE - ONT

1 stop27h 03mUnited Airlines

Fri 26/918:27ONT - BNE

2 stops43h 03mUnited Airlines

Deal found 15/9$1,573

Thu 2/1010:30BNE - ONT

1 stop18h 43mUnited Airlines

Wed 15/1018:36ONT - BNE

1 stop18h 54mUnited Airlines

Deal found 14/9$1,126

Sat 4/1010:30BNE - ONT

2 stops27h 54mUnited Airlines

Sat 11/1006:00ONT - BNE

2 stops55h 30mUnited Airlines

Deal found 14/9$1,273

Tue 14/1010:30BNE - ONT

2 stops21h 32mUnited Airlines

Sat 18/1006:00ONT - BNE

2 stops55h 30mUnited Airlines

Deal found 14/9$1,198

Wed 29/1010:40BNE - ONT

1 stop29h 11mUnited Airlines

Wed 5/1118:38ONT - BNE

1 stop18h 52mUnited Airlines

Deal found 14/9$1,216

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 15 September 2025.

Thu 30/1009:40SYD - ONT

2 stops24h 13mDelta

Deal found 15/9$777

Thu 12/312:00MEL - ONT

2 stops42h 33mUnited Airlines

Deal found 15/9$804

Wed 22/1017:20SYD - ONT

1 stop21h 17mMultiple Airlines

Deal found 13/9$815

Sun 21/910:55MEL - ONT

1 stop18h 18mUnited Airlines

Deal found 13/9$815

Mon 24/1111:50SYD - ONT

1 stop28h 59mUnited Airlines

Deal found 15/9$816

Mon 8/1213:00MEL - ONT

1 stop23h 37mUnited Airlines

Deal found 15/9$816

Mon 22/910:20SYD - ONT

2 stops43h 12mUnited Airlines

Deal found 15/9$818

Wed 19/1113:00MEL - ONT

1 stop18h 37mUnited Airlines

Deal found 14/9$821

Mon 15/1212:10SYD - ONT

2 stops43h 22mUnited Airlines

Deal found 15/9$825

Mon 1/1213:00MEL - ONT

2 stops51h 49mUnited Airlines

Deal found 15/9$825

Sun 21/910:20SYD - ONT

2 stops28h 05mUnited Airlines

Deal found 15/9$827

Sat 6/1212:55BNE - ONT

2 stops25h 28mMultiple Airlines

Deal found 14/9$849

Fly from

Fly to

Route

Depart

Return

Price

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 15/2

21:40-21:55

1 stop19h 15m

Ontario

Sun 15/3

09:50-19:45

1 stop39h 55m

$1,103

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 6/10

11:20-12:13

1 stop18h 53m

Ontario

Sun 19/10

18:36-07:55

1 stop19h 19m

$1,136

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 12/3

12:10-12:33

2 stops42h 23m

Ontario

Mon 16/3

05:40-09:15

2 stops57h 35m

$1,138

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 11/11

12:10-12:31

2 stops43h 21m

Ontario

Sun 11/1

06:00-06:20

1 stop29h 20m

$1,138

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 29/10

12:10-22:51

1 stop28h 41m

Ontario

Sun 2/11

05:05-09:15

2 stops57h 10m

$1,138

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 23/10

11:20-17:40

1 stop24h 20m

Ontario

Tue 9/12

13:50-09:15

1 stop24h 25m

$1,138

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 12/11

12:10-21:49

2 stops28h 39m

Ontario

Sun 11/1

06:00-06:20

1 stop29h 20m

$1,138

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 13/11

12:10-17:34

1 stop24h 24m

Ontario

Mon 17/11

13:29-07:00

2 stops46h 31m

$1,138

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Tue 14/10

10:30-12:13

1 stop18h 43m

Ontario

Sat 18/10

06:00-06:30

2 stops55h 30m

$1,198

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Thu 30/10

10:40-12:37

1 stop18h 57m

Ontario

Mon 3/11

13:29-07:30

2 stops48h 01m

$1,198

Flights are sorted by cheapest return flights first.

Deals found on 15/9

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

8,929 reviews

Check prices

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

8,929 reviews

United Airlines

7.4

Good

8,929 reviews

Check prices

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

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?
Hawaiian Airlines and United Airlines can get you from Australia to Ontario in just under 18h 53m. Your travel time can differ by up to 22m. 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 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Australia to Ontario

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,046	Average$1,734	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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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.

Cheap flights from Australia to Ontario from $777

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 30/10. 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 15 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 15 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 15 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 15 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?

100% Free

Book with Flexibility

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 15 September 2025.