What are the cheapest airlines to fly from Australia to Ontario one-way?

$731 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Alaska Airlines and China Airlines, with prices starting from $1,068 and $1,122, respectively. 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 26 days early can save you up to 14% on average compared to booking a flight this week. If booking 26 days before your flight isn’t an option for you, users have found flights from Australia to Ontario for as little as $1,360 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 $1,518 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 $969.

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.

$2,202+ Flights from Australia to Ontario - Compare & Save Big

Cheap flight deals from Australia to Ontario

Round-trip from	$1,305
One-way from	$731
Popular in	December
Cheapest in	May
Average price	$1,194

Delta
1/6-16/6
4 total stops
62h 52m total
Australia to Ontario

Search Deals

United Airlines
1/6
1 total stop
24h 19m total
Australia to Ontario

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($320 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($89 potential savings vs. average return price).

Search Deals

Average for round-trip flights in May 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 1 May 2025.

Sun 1/609:25SYD - ONT

2 stops31h 17mDelta

Mon 16/606:00ONT - SYD

2 stops31h 35mDelta

Deal found 1/5$1,305

Sun 1/610:20SYD - ONT

1 stop18h 54mUnited Airlines

Sat 14/618:41ONT - SYD

1 stop19h 14mUnited Airlines

Deal found 1/5$1,369

Wed 12/1111:40BNE - ONT

1 stop16h 19mUnited Airlines

Wed 26/1113:00ONT - BNE

2 stops24h 30mUnited Airlines

Deal found 1/5$1,438

Sat 3/521:40SYD - ONT

1 stop17h 10mHawaiian Airlines

Wed 7/509:45ONT - SYD

1 stop41h 00mHawaiian Airlines

Deal found 30/4$1,441

Fri 2/521:40SYD - ONT

1 stop17h 10mAlaska Airlines

Tue 6/509:45ONT - SYD

1 stop41h 00mAlaska Airlines

Deal found 1/5$1,454

Sun 1/610:20SYD - ONT

1 stop18h 54mLufthansa

Sat 14/618:41ONT - SYD

1 stop19h 14mLufthansa

Deal found 30/4$1,543

Tue 12/810:55MEL - ONT

1 stop23h 48mUnited Airlines

Wed 27/818:36ONT - MEL

1 stop20h 39mUnited Airlines

Deal found 1/5$1,738

Fri 29/821:50MEL - ONT

1 stop37h 50mChina Airlines

Sat 13/900:45ONT - MEL

1 stop40h 55mChina Airlines

Deal found 29/4$1,755

Sun 26/1022:10SYD - ONT

1 stop37h 40mChina Airlines

Sat 1/1123:45ONT - SYD

1 stop42h 25mChina Airlines

Deal found 29/4$1,769

Tue 15/722:50BNE - ONT

1 stop36h 50mChina Airlines

Mon 18/800:45ONT - BNE

1 stop40h 50mChina Airlines

Deal found 1/5$1,819

Mon 12/520:00ADL - ONT

2 stops42h 20mHawaiian Airlines

Tue 20/509:50ONT - ADL

2 stops54h 35mHawaiian Airlines

Deal found 30/4$1,826

Wed 14/523:15PER - ONT

2 stops33h 45mMultiple Airlines

Thu 4/900:45ONT - PER

2 stops38h 05mMultiple Airlines

Deal found 1/5$1,852

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 1 May 2025.

Sun 1/609:25SYD - ONT

2 stops31h 17mDelta

Mon 16/606:00ONT - SYD

2 stops31h 35mDelta

Deal found 1/5$1,305

Sun 1/610:20SYD - ONT

1 stop18h 54mUnited Airlines

Sat 14/618:41ONT - SYD

1 stop19h 14mUnited Airlines

Deal found 1/5$1,369

Sun 1/610:20SYD - ONT

1 stop18h 54mLufthansa

Sat 14/618:41ONT - SYD

1 stop19h 14mLufthansa

Deal found 30/4$1,543

Tue 14/1021:40SYD - ONT

1 stop18h 15mHawaiian Airlines

Thu 23/1009:50ONT - SYD

1 stop39h 55mHawaiian Airlines

Deal found 30/4$1,640

Sun 12/1021:40SYD - ONT

1 stop18h 15mAlaska Airlines

Sat 25/1009:50ONT - SYD

1 stop38h 30mAlaska Airlines

Deal found 30/4$1,732

Fri 29/821:50MEL - ONT

1 stop37h 50mChina Airlines

Sat 13/900:45ONT - MEL

1 stop40h 55mChina Airlines

Deal found 29/4$1,755

Wed 14/523:15PER - ONT

2 stops33h 45mMultiple Airlines

Thu 4/900:45ONT - PER

2 stops38h 05mMultiple Airlines

Deal found 1/5$1,852

Wed 27/807:25MEL - ONT

2 stops28h 03mJapan Airlines

Mon 1/906:00ONT - MEL

2 stops30h 45mJapan Airlines

Deal found 1/5$2,173

Mon 13/1022:45PER - ONT

2 stops34h 32mQatar Airways

Thu 13/1111:30ONT - PER

2 stops32h 30mQatar Airways

Deal found 30/4$2,699

Tue 12/810:55MEL - ONT

1 stop23h 48mUnited Airlines

Wed 27/818:36ONT - MEL

1 stop20h 39mUnited Airlines

Deal found 1/5$1,738

Sun 26/1022:10SYD - ONT

1 stop37h 40mChina Airlines

Sat 1/1123:45ONT - SYD

1 stop42h 25mChina Airlines

Deal found 29/4$1,769

Mon 12/520:00ADL - ONT

2 stops42h 20mHawaiian Airlines

Tue 20/509:50ONT - ADL

2 stops54h 35mHawaiian Airlines

Deal found 30/4$1,826

Last-minute flights from Australia to Ontario
Discover last-minute flight deals from Australia to Ontario. Data last updated 1 May 2025 and is based on user searches.

Fri 2/521:40SYD - ONT

1 stop17h 10mAlaska Airlines

Tue 6/509:45ONT - SYD

1 stop41h 00mAlaska Airlines

Deal found 1/5$1,454

Sat 3/521:40SYD - ONT

1 stop17h 10mHawaiian Airlines

Wed 7/509:45ONT - SYD

1 stop41h 00mHawaiian Airlines

Deal found 30/4$1,441

Tue 6/521:40SYD - ONT

1 stop17h 10mAlaska Airlines

Wed 7/509:45ONT - SYD

1 stop41h 00mAlaska Airlines

Deal found 30/4$1,849

Tue 6/510:20SYD - ONT

2 stops21h 49mUnited Airlines

Sat 10/513:20ONT - SYD

2 stops48h 35mUnited Airlines

Deal found 1/5$2,396

Tue 6/510:30BNE - ONT

2 stops27h 23mUnited Airlines

Sat 10/516:15ONT - BNE

2 stops45h 15mUnited Airlines

Deal found 1/5$2,615

Tue 6/522:50BNE - ONT

1 stop36h 10mChina Airlines

Wed 2/700:45ONT - BNE

1 stop40h 50mChina Airlines

Deal found 30/4$3,445

Wed 7/521:50MEL - ONT

1 stop37h 10mChina Airlines

Sat 10/500:10ONT - MEL

1 stop41h 30mChina Airlines

Deal found 30/4$2,124

Wed 7/523:30MEL - ONT

3 stops35h 30mMultiple Airlines

Tue 13/500:10ONT - MEL

2 stops29h 25mMultiple Airlines

Deal found 30/4$2,396

Thu 8/522:10SYD - ONT

1 stop36h 50mChina Airlines

Sun 11/500:10ONT - SYD

1 stop41h 35mChina Airlines

Deal found 1/5$1,829

Thu 8/512:25ADL - ONT

2 stops25h 55mHawaiian Airlines

Tue 20/509:50ONT - ADL

2 stops56h 35mHawaiian Airlines

Deal found 30/4$2,099

Fri 9/521:40SYD - ONT

1 stop17h 10mHawaiian Airlines

Sun 25/509:50ONT - SYD

1 stop40h 55mHawaiian Airlines

Deal found 1/5$1,721

Fri 9/510:55MEL - ONT

1 stop20h 30mUnited Airlines

Fri 23/518:34ONT - MEL

1 stop20h 41mUnited Airlines

Deal found 30/4$2,276

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 1 May 2025.

Sun 1/610:20SYD - ONT

1 stop24h 19mUnited Airlines

Deal found 30/4$731

Fri 9/506:45MEL - ONT

2 stops32h 05mMultiple Airlines

Deal found 30/4$736

Fri 9/516:20SYD - ONT

1 stop22h 30mMultiple Airlines

Deal found 30/4$842

Thu 15/507:00BNE - ONT

2 stops31h 55mMultiple Airlines

Deal found 1/5$1,022

Wed 21/523:15PER - ONT

2 stops33h 45mMultiple Airlines

Deal found 1/5$1,039

Tue 21/1021:40SYD - ONT

1 stop18h 15mAlaska Airlines

Deal found 30/4$1,068

Thu 22/522:50BNE - ONT

1 stop36h 10mChina Airlines

Deal found 1/5$1,122

Wed 21/522:10SYD - ONT

1 stop36h 50mChina Airlines

Deal found 30/4$1,125

Fri 30/521:50MEL - ONT

1 stop37h 10mChina Airlines

Deal found 29/4$1,200

Tue 29/710:55MEL - ONT

2 stops42h 37mUnited Airlines

Deal found 29/4$1,210

Tue 6/516:35BNE - ONT

2 stops22h 15mHawaiian Airlines

Deal found 1/5$1,335

Mon 13/1010:30BNE - ONT

1 stop24h 02mUnited Airlines

Deal found 1/5$1,354

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 1/6

09:25-23:42

2 stops31h 17m

Ontario

Mon 16/6

06:00-06:35

2 stops31h 35m

$1,305

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 1/6

10:20-12:14

1 stop18h 54m

Ontario

Sat 14/6

18:41-06:55

1 stop19h 14m

$1,369

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 1/6

10:20-12:14

1 stop18h 54m

Ontario

Sat 14/6

18:41-06:55

1 stop19h 14m

$1,543

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 14/10

21:40-21:55

1 stop18h 15m

Ontario

Thu 23/10

09:50-19:45

1 stop39h 55m

$1,640

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 12/10

21:40-21:55

1 stop18h 15m

Ontario

Sat 25/10

09:50-18:20

1 stop38h 30m

$1,732

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Tue 12/8

10:55-17:43

1 stop23h 48m

Ontario

Wed 27/8

18:36-08:15

1 stop20h 39m

$1,738

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Fri 29/8

21:50-18:40

1 stop37h 50m

Ontario

Sat 13/9

00:45-10:40

1 stop40h 55m

$1,755

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 26/10

22:10-17:50

1 stop37h 40m

Ontario

Sat 1/11

23:45-12:10

1 stop42h 25m

$1,769

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Tue 15/7

22:50-18:40

1 stop36h 50m

Ontario

Mon 18/8

00:45-10:35

1 stop40h 50m

$1,819

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Mon 12/5

20:00-21:50

2 stops42h 20m

Ontario

Tue 20/5

09:50-08:55

2 stops54h 35m

$1,826

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 46 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.

Rainfall in Ontario by month

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.

Temperature in Ontario 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 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).

Reviews of airlines servicing Ontario

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. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Japan Airlines

8.3

Very Good

1,464 reviews

Check prices

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

Check prices

Reviews

1 / 20

10.0

Excellent

mark,Nov 2024

YVR - NRT

China Airlines

8.3

Very Good

732 reviews

Japan Airlines

8.3

Very Good

1,464 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

mark,Nov 2024

YVR - NRT

Alaska Airlines

8.0

Very Good

9,972 reviews

Japan Airlines

8.3

Very Good

1,464 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

mark,Nov 2024

YVR - NRT

Delta

8.0

Very Good

7,934 reviews

Japan Airlines

8.3

Very Good

1,464 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

mark,Nov 2024

YVR - NRT

Hawaiian Airlines

7.9

Good

2,409 reviews

Japan Airlines

8.3

Very Good

1,464 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

mark,Nov 2024

YVR - NRT

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.
What are the cheapest airlines to fly from Australia to Ontario one-way?
$731 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Alaska Airlines and China Airlines, with prices starting from $1,068 and $1,122, respectively.
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 for Australia to Ontario

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Top airline flying from Australia to Ontario

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,090	Average$1,797	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 $731

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 1/6. 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 1 May 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 1 May 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 1 May 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 1 May 2025.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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 1 May 2025.

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?

What are the cheapest airlines to fly from Australia to Ontario one-way?

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 1 May 2025.