How long is the flight from Australia to Ontario?

United Airlines, Qatar Airways, and China Airlines can get you from Australia to Ontario in just under 16h 53m. Your travel time can differ by up to 22h 57m. The distance between Australia and Ontario is about 11599 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 Sydney Kingsford Smith - Ontario or Melbourne - Ontario, Perth - 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.

$735+ 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 6 September 2026.

Mon 19/1010:15 -

2 stops31h 40m

Mon 26/1006:00 -

2 stops31h 30m

Deal found 3/9$1,229

Sun 18/1020:45 -

1 stop18h 44m

Fri 23/1007:00 -

1 stop17h 50m

Deal found 5/9$1,266

Fri 9/1010:30 -

1 stop18h 48m

Mon 19/1018:32 -

1 stop18h 58m

Deal found 3/9$1,278

Sun 6/910:30 -

1 stop18h 42m

Sun 20/919:13 -

1 stop18h 17m

Deal found 3/9$1,279

Fri 11/920:45 -

1 stop18h 25m

Fri 18/909:31 -

1 stop40h 19m

Deal found 3/9$1,281

Wed 21/1010:30 -

1 stop21h 52m

Sat 21/1116:17 -

1 stop21h 13m

Deal found 2/9$1,281

Fri 4/910:30 -

1 stop18h 42m

Sun 20/919:13 -

1 stop18h 17m

Deal found 1/9$1,285

Tue 8/910:30 -

1 stop20h 31m

Mon 14/913:56 -

1 stop23h 34m

Deal found 4/9$1,286

Sat 24/1020:45 -

1 stop18h 44m

Sat 31/1007:00 -

1 stop18h 45m

Deal found 4/9$1,289

Mon 7/910:20 -

1 stop18h 52m

Sun 20/919:13 -

1 stop18h 42m

Deal found 2/9$1,297

Mon 21/910:55 -

1 stop18h 17m

Mon 19/1018:32 -

1 stop20h 43m

Deal found 3/9$1,297

Mon 21/910:55 -

1 stop24h 16m

Mon 19/1013:24 -

2 stops25h 51m

Deal found 3/9$1,299

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 6 September 2026.

Wed 21/1010:30 -

1 stop16h 53m

Sat 21/1113:29 -

2 stops24h 01m

Deal found 3/9$1,281

Thu 12/1114:35 -

2 stops25h 07m

Sun 6/1209:00 -

2 stops56h 25m

Deal found 2/9$1,508

Wed 4/1122:00 -

2 stops38h 47m

Wed 2/1206:00 -

2 stops39h 25m

Deal found 4/9$2,499

Thu 22/1018:50 -

2 stops41h 10m

Fri 6/1122:50 -

2 stops47h 25m

Deal found 1/9$2,544

Fri 11/1211:20 -

2 stops43h 14m

Fri 8/105:00 -

2 stops32h 30m

Deal found 2/9$1,281

Wed 21/1010:30 -

2 stops27h 28m

Fri 20/1118:37 -

1 stop18h 53m

Deal found 1/9$1,282

Wed 21/1010:30 -

1 stop16h 53m

Sun 22/1105:00 -

2 stops56h 30m

Deal found 5/9$1,289

Fri 16/1015:05 -

2 stops23h 24m

Fri 23/1007:00 -

2 stops37h 55m

Deal found 1/9$1,605

Mon 26/1011:45 -

1 stop18h 44m

Sun 8/1118:37 -

1 stop20h 53m

Deal found 3/9$1,299

Fri 16/1006:00 -

2 stops32h 29m

Fri 23/1007:00 -

2 stops33h 40m

Deal found 31/8$1,628

Mon 1/312:45 -

1 stop18h 35m

Wed 3/313:00 -

2 stops26h 30m

Deal found 31/8$1,302

Mon 5/1011:55 -

1 stop18h 23m

Sat 31/1013:29 -

2 stops26h 01m

Deal found 1/9$1,370

Sun 17/121:40 -

2 stops31h 20m

Thu 4/207:00 -

1 stop17h 45m

Deal found 4/9$1,975

Fri 6/1111:50 -

1 stop19h 39m

Sun 15/1118:37 -

1 stop19h 43m

Deal found 4/9$1,378

Wed 4/1119:45 -

2 stops39h 50m

Wed 2/1222:50 -

2 stops49h 05m

Deal found 5/9$2,602

Mon 28/910:20 -

2 stops43h 26m

Thu 1/1009:25 -

1 stop28h 30m

Deal found 5/9$1,382

Sat 24/1020:45 -

2 stops44h 57m

Fri 6/1119:13 -

2 stops29h 32m

Deal found 3/9$2,093

Sat 26/917:05 -

2 stops36h 13m

Mon 5/1006:07 -

1 stop31h 23m

Deal found 3/9$1,393

Mon 2/1122:45 -

2 stops35h 36m

Mon 9/1114:22 -

2 stops36h 23m

Deal found 3/9$3,264

Tue 17/1107:55 -

2 stops22h 34m

Thu 21/113:00 -

2 stops24h 30m

Deal found 5/9$1,402

Sun 20/918:10 -

2 stops21h 00m

Mon 12/1007:00 -

2 stops22h 35m

Deal found 4/9$2,510

Fri 23/1011:20 -

1 stop29h 31m

Fri 6/1118:37 -

1 stop19h 43m

Deal found 3/9$1,442

Sat 19/922:00 -

2 stops37h 33m

Wed 23/912:12 -

2 stops34h 18m

Deal found 2/9$3,641

Mon 26/1018:50 -

2 stops41h 15m

Sun 8/1122:50 -

1 stop42h 15m

Deal found 3/9$2,544

Sat 26/1209:20 -

2 stops30h 40m

Thu 14/118:53 -

1 stop19h 27m

Deal found 2/9$1,442

Sat 16/108:00 -

2 stops20h 47m

Fri 22/116:03 -

2 stops23h 32m

Deal found 1/9$1,569

Sun 27/906:05 -

2 stops31h 05m

Thu 8/1007:00 -

2 stops36h 20m

Deal found 1/9$2,782

Mon 28/923:55 -

2 stops37h 15m

Mon 12/1007:00 -

2 stops40h 25m

Deal found 5/9$2,814

Thu 28/107:20 -

2 stops26h 07m

Sun 31/118:53 -

2 stops43h 47m

Deal found 2/9$1,683

Thu 25/214:00 -

2 stops43h 05m

Thu 11/322:50 -

2 stops51h 35m

Deal found 2/9$2,920

Find flight deals from Australia to Ontario

Round-trip from	$1,229
One-way from	$735
Popular in	December
Cheapest in	August
Average price	$1,100

Delta
19/10-26/10
4 total stops
63h 10m total
Australia to Ontario

Search Deals

United Airlines
13/10-31/12
1 total stop
24h 11m total
Australia to Ontario

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($124 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($40 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BrisbaneOntario

BNE Brisbane - ONT Ontario

BNEONT

Brisbane

Fri 11/9

10:30-20:01

1 stop26h 31m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$740

BrisbaneOntario

BNE Brisbane - ONT Ontario

BNEONT

Brisbane

Mon 26/10

10:20-12:29

1 stop19h 09m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$741

Fastest return journey

BrisbaneOntario

BNE Brisbane - ONT Ontario

BNEONT

Brisbane

Sat 23/1

11:20-09:47

1 stop16h 27m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$742

BrisbaneOntario

BNE Brisbane - ONT Ontario

BNEONT

Brisbane

Fri 29/1

11:20-12:33

2 stops43h 13m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$745

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Tue 20/10

11:20-15:22

1 stop22h 02m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$751

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Wed 30/9

10:20-20:58

2 stops27h 38m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$751

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 19/10

11:20-12:18

1 stop18h 58m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$752

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Thu 22/10

11:20-20:58

2 stops27h 38m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$753

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Wed 21/10

11:20-21:59

2 stops28h 39m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$753

MelbourneOntario

MEL Melbourne - ONT Ontario

MELONT

Melbourne

Thu 26/11

12:45-19:42

2 stops25h 57m

Ontario

Wed 31/12

00:00-18:00

Nonstop0h 00m

$755

Flights are sorted by cheapest return flights first.

Deals found on 3/9

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.

BNE-ONT

MCY-ONT

ADL-ONT

MEL-ONT

OOL-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

BNE-ONT

MCY-ONT

ADL-ONT

MEL-ONT

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

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, Qatar Airways, and China Airlines can get you from Australia to Ontario in just under 16h 53m. Your travel time can differ by up to 22h 57m. The distance between Australia and Ontario is about 11599 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 Sydney Kingsford Smith - Ontario or Melbourne - Ontario, Perth - 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

Direct flights to California

Flights by cabin class

Other flight options

Popular flights

Alternative routes for Australia to Ontario

Sydney to Los Angeles flights

Melbourne to Los Angeles flights

Brisbane to Los Angeles flights

Sydney to San Francisco flights

Perth to Los Angeles flights

Melbourne to San Francisco flights

Perth to Ontario flights

Sydney to Ontario flights

Brisbane to San Francisco flights

Sydney to Las Vegas flights

Sydney to Long Beach flights

Brisbane to Ontario flights

Sydney to San Jose flights

Sydney to Burbank flights

Sydney to Oakland flights

Sydney to San Diego flights

Melbourne to Las Vegas flights

Adelaide to Los Angeles flights

Sydney to Santa Ana flights

Brisbane to Las Vegas flights

Melbourne to San Jose flights

Adelaide to San Francisco flights

Melbourne to Oakland flights

Brisbane to San Diego flights

Brisbane to Sacramento flights

Avalon to San Francisco flights

Melbourne to San Diego flights

Melbourne to Sacramento flights

Sydney to Sacramento flights

Cairns to Los Angeles flights

Coolangatta to Los Angeles flights

Canberra to Los Angeles flights

Sydney to Palm Springs flights

Sydney to Reno flights

Melbourne to Santa Ana flights

Melbourne to Santa Rosa flights

Perth to San Francisco flights

Darwin to Los Angeles flights

Townsville to Los Angeles flights

Hobart to Los Angeles flights

Perth to Las Vegas flights

Coolangatta to San Francisco flights

Adelaide to San Jose flights

Brisbane to San Jose flights

Adelaide to Las Vegas flights

Cairns to San Francisco flights

Melbourne to Long Beach 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

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 $735

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Australia to Ontario

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 6 September 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 6 September 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 6 September 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 6 September 2026.

Last-minute flights from Australia to OntarioDiscover last-minute flight deals from Australia to Ontario. Data last updated 6 September 2026 and is based on user searches.

Discover last-minute flight deals from Australia to Ontario. Data last updated 6 September 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 6 September 2026.

Search for one-way flight options from Australia to Ontario. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

Find flight deals from Australia to Ontario

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

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.

Direct flights to California

Book a non-stop flight to one of these other cities located in California.

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 6 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

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?

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 6 September 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 6 September 2026.

Last-minute flights from Australia to Ontario
Discover last-minute flight deals from Australia to Ontario. Data last updated 6 September 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 6 September 2026.