How long is the flight from Australia to Ontario?

United Airlines and Qatar Airways can get you from Australia to Ontario in just under 19h 39m. Your travel time can differ by up to 19h 53m. The distance between Australia and Ontario is about 12125 km. Both multi-stop and direct flights can be found to your destination and back.

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.

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).

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.

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.

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.

$676+ Cheap Flights from Australia to Ontario

Cheap flight deals from Australia to Ontario

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 5 November 2026.

Sun 8/1121:40 -

1 stop20h 03m

Sun 15/1109:55 -

1 stop38h 50m

Deal found 3/11$1,143

Mon 9/1111:50 -

1 stop19h 39m

Sun 22/1113:35 -

1 stop24h 45m

Deal found 2/11$1,170

Mon 9/1111:50 -

1 stop19h 39m

Mon 23/1116:17 -

1 stop22h 03m

Deal found 1/11$1,172

Mon 2/1111:50 -

1 stop19h 39m

Mon 9/1116:17 -

1 stop22h 03m

Deal found 1/11$1,173

Mon 2/1111:50 -

1 stop19h 39m

Sun 15/1118:37 -

1 stop19h 43m

Deal found 31/10$1,175

Tue 24/1111:50 -

1 stop22h 43m

Tue 29/1218:27 -

1 stop40h 53m

Deal found 3/11$1,183

Tue 3/1111:50 -

1 stop19h 39m

Tue 10/1116:17 -

1 stop22h 03m

Deal found 1/11$1,185

Mon 9/1111:50 -

1 stop19h 39m

Sun 22/1116:17 -

1 stop22h 03m

Deal found 3/11$1,186

Mon 9/1111:50 -

1 stop19h 39m

Mon 23/1116:17 -

1 stop22h 03m

Deal found 2/11$1,190

Mon 2/1111:50 -

1 stop19h 39m

Sun 15/1116:17 -

1 stop22h 03m

Deal found 31/10$1,192

Sun 1/1110:40 -

2 stops29h 31m

Thu 5/1106:00 -

2 stops56h 30m

Deal found 30/10$1,213

Fri 6/1111:20 -

1 stop19h 09m

Mon 1/218:37 -

1 stop18h 53m

Deal found 4/11$1,287

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 5 November 2026.

Mon 9/1111:50 -

1 stop19h 39m

Sun 22/1116:17 -

1 stop22h 03m

Deal found 2/11$1,189

Thu 4/323:40 -

2 stops41h 59m

Wed 10/306:00 -

2 stops40h 50m

Deal found 3/11$2,136

Sun 11/421:50 -

1 stop37h 10m

Mon 3/500:10 -

1 stop41h 30m

Deal found 1/11$2,409

Mon 25/111:50 -

1 stop17h 07m

Sat 30/115:59 -

1 stop19h 21m

Deal found 31/10$1,256

Fri 12/211:20 -

1 stop17h 02m

Sun 28/207:40 -

1 stop29h 50m

Deal found 3/11$1,296

Tue 16/211:20 -

1 stop17h 02m

Sat 6/313:00 -

2 stops24h 30m

Deal found 30/10$1,300

Tue 17/1112:45 -

1 stop21h 48m

Wed 18/1105:00 -

2 stops34h 30m

Deal found 4/11$1,307

Wed 31/311:55 -

1 stop18h 25m

Wed 14/416:03 -

1 stop23h 12m

Deal found 4/11$1,309

Wed 24/311:45 -

1 stop18h 35m

Tue 30/313:00 -

2 stops26h 15m

Deal found 3/11$1,315

Sat 21/1111:50 -

1 stop19h 39m

Sat 28/1116:17 -

1 stop22h 03m

Deal found 31/10$1,327

Tue 12/123:40 -

2 stops42h 03m

Mon 25/111:34 -

2 stops40h 46m

Deal found 4/11$2,661

Tue 26/123:10 -

1 stop35h 55m

Wed 10/222:50 -

1 stop41h 55m

Deal found 2/11$2,679

Tue 2/312:45 -

1 stop21h 30m

Thu 11/318:53 -

1 stop20h 37m

Deal found 1/11$1,389

Thu 19/1107:55 -

2 stops22h 34m

Thu 26/1112:30 -

1 stop25h 00m

Deal found 3/11$1,407

Mon 9/1122:10 -

2 stops39h 32m

Sun 22/1110:37 -

2 stops37h 43m

Deal found 2/11$2,878

Tue 17/1107:55 -

2 stops22h 34m

Thu 26/1112:30 -

1 stop25h 00m

Deal found 30/10$1,412

Mon 9/1122:10 -

1 stop37h 55m

Sun 22/1122:50 -

2 stops45h 40m

Deal found 3/11$3,255

Thu 4/312:45 -

1 stop18h 35m

Wed 10/316:03 -

2 stops22h 47m

Deal found 3/11$1,427

Tue 17/1107:55 -

2 stops22h 34m

Tue 24/1116:17 -

2 stops27h 03m

Deal found 1/11$1,443

Fri 26/319:45 -

2 stops39h 50m

Sat 10/400:10 -

2 stops49h 20m

Deal found 4/11$3,467

Mon 23/1122:10 -

2 stops39h 42m

Fri 27/1106:00 -

2 stops42h 20m

Deal found 31/10$3,814

Tue 17/1108:40 -

2 stops27h 51m

Tue 24/1113:35 -

2 stops30h 05m

Deal found 1/11$1,568

Thu 26/1122:00 -

2 stops39h 22m

Thu 10/1210:32 -

2 stops36h 03m

Deal found 4/11$4,022

Thu 4/206:10 -

2 stops32h 45m

Mon 8/207:25 -

1 stop31h 35m

Deal found 3/11$1,636

Sat 7/1122:10 -

2 stops39h 07m

Sat 14/1110:30 -

2 stops37h 50m

Deal found 1/11$4,164

Fri 19/211:20 -

1 stop24h 15m

Mon 1/306:00 -

2 stops55h 30m

Deal found 1/11$1,859

Wed 9/1215:50 -

2 stops39h 22m

Sun 20/1210:34 -

2 stops36h 46m

Deal found 3/11$4,733

Wed 25/1111:20 -

1 stop19h 09m

Fri 1/118:27 -

1 stop19h 03m

Deal found 1/11$2,038

Fri 25/1212:45 -

1 stop21h 34m

Tue 5/109:45 -

2 stops29h 50m

Deal found 2/11$2,155

Mon 7/1206:05 -

2 stops29h 31m

Mon 21/1213:38 -

2 stops47h 52m

Deal found 3/11$2,255

Find flight deals from Australia to Ontario

Round-trip from	$1,182
One-way from	$676
Popular in	December
Cheapest in	August
Average price	$1,125

Virgin Australia
21/1-25/1
2 total stops
39h 28m total
Australia to Ontario

Search Deals

Lufthansa
7/12-31/12
1 total stop
16h 48m total
Australia to Ontario

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($156 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($53 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 1/3

11:50-17:35

1 stop24h 45m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$680

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Tue 2/2

13:20-20:01

1 stop25h 41m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$682

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Wed 2/12

11:50-20:38

1 stop27h 48m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$682

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Thu 21/1

11:50-21:00

2 stops28h 10m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$682

BrisbaneOntario

BNE Brisbane - ONT Ontario

BNEONT

Brisbane

Mon 9/11

11:20-17:56

1 stop24h 36m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$744

BrisbaneOntario

BNE Brisbane - ONT Ontario

BNEONT

Brisbane

Wed 11/11

11:20-20:51

2 stops27h 31m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$744

BrisbaneOntario

BNE Brisbane - ONT Ontario

BNEONT

Brisbane

Wed 18/11

11:20-15:33

1 stop22h 13m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$749

BrisbaneOntario

BNE Brisbane - ONT Ontario

BNEONT

Brisbane

Wed 25/11

11:20-12:33

2 stops43h 13m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$749

BrisbaneOntario

BNE Brisbane - ONT Ontario

BNEONT

Brisbane

Thu 24/12

11:20-17:46

1 stop24h 26m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$750

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 8/2

11:50-17:35

1 stop24h 45m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$756

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

SYD-ONT

BNE-ONT

ADL-ONT

MEL-ONT

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

AU0-ONT

SYD-ONT

BNE-ONT

ADL-ONT

MEL-ONT

No data available for this route at this time. Please check back soon.

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

7.3

Good

10,461 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

7.3

Good

10,461 reviews

United Airlines

7.3

Good

10,461 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?
United Airlines and Qatar Airways can get you from Australia to Ontario in just under 19h 39m. Your travel time can differ by up to 19h 53m. 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

Alternative routes

Complete your trip

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Top airline flying from Australia to Ontario

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,054	Average$1,268	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 $676

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 5 November 2026.

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 5 November 2026.

Best flights from Australia to OntarioDiscover 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 5 November 2026.

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 5 November 2026.

Last-minute flights from Australia to OntarioDiscover last-minute flight deals from Australia to Ontario. Data last updated 5 November 2026 and is based on user searches.

Discover last-minute flight deals from Australia to Ontario. Data last updated 5 November 2026 and is based on user searches.

One-way flights from Australia to OntarioSearch for one-way flight options from Australia to Ontario. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Search for one-way flight options from Australia to Ontario. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Find flight deals from Australia to Ontario

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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

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

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.

Complete your trip

Complete your trip to Ontario by adding a car hire and/or hotel booking to your travel itinerary.

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Search flights from Australia to Ontario by cabin class

Find flights from Australia to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Australia and Ontario flights

Browse other Australia and Ontario flight options. Last updated on 5 November 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top airline flying from Australia to Ontario

Fly with Cheapflights

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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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 5 November 2026.

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 5 November 2026.

Last-minute flights from Australia to Ontario
Discover last-minute flight deals from Australia to Ontario. Data last updated 5 November 2026 and is based on user searches.

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 5 November 2026.