$464 Find Cheap Flights from Ontario to Australia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Australia departing on 2/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Ontario to Australia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney2 stops$925
Brisbane
Brisbane1 stop$1,049
Perth
Perth2 stops$1,438
Sydney
Sydney2 stops$925
Brisbane
Brisbane1 stop$1,049
Perth
Perth2 stops$1,438

Book Cheap Ontario to Australia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Australia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Australia

Mon, May 4 - Wed, May 13
Delta Logo
6:00 am - 6:35 amONT-SYD
31h 35m2 stops
Delta Logo
9:25 am - 11:44 pmSYD-ONT
31h 19m2 stops
$925Delta
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Sun, Mar 29 - Tue, Apr 14
United Airlines Logo
6:53 pm - 7:55 amONT-SYD
19h 02m1 stop
United Airlines Logo
10:20 am - 9:55 amSYD-ONT
16h 35m1 stop
$963United Airlines
Find Deal
Tue, May 5 - Tue, May 19
United Airlines Logo
6:53 pm - 6:55 amONT-SYD
19h 02m1 stop
United Airlines Logo
10:20 am - 12:20 pmSYD-ONT
19h 00m1 stop
$971United Airlines
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Mon, Dec 1 - Fri, Dec 5
United Airlines Logo
1:40 pm - 9:15 amONT-SYD
24h 35m1 stop
United Airlines Logo
12:10 pm - 5:37 pmSYD-ONT
24h 27m1 stop
$974United Airlines
Find Deal
Wed, Apr 8 - Tue, Apr 21
United Airlines Logo
1:34 pm - 6:55 amONT-SYD
24h 21m2 stops
United Airlines Logo
10:20 am - 9:55 amSYD-ONT
16h 35m1 stop
$975United Airlines
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Mon, Feb 23 - Sat, Mar 21
American Airlines Logo
10:59 am - 6:30 amONT-BNE
25h 31m1 stop
American Airlines Logo
8:40 am - 1:40 pmBNE-ONT
22h 00m1 stop
$1,228American Airlines
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Thu, Feb 26 - Sat, Mar 21
American Airlines Logo
7:50 pm - 6:30 amONT-BNE
40h 40m2 stops
American Airlines Logo
8:40 am - 5:52 pmBNE-ONT
26h 12m2 stops
$1,232American Airlines
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Thu, Feb 26 - Tue, Mar 3
Qatar Airways Logo
12:02 pm - 11:55 amONT-PER
31h 53m2 stops
Qatar Airways Logo
10:45 pm - 10:44 pmPER-ONT
39h 59m2 stops
$1,438Qatar Airways
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Wed, Mar 25 - Tue, Apr 28
Qatar Airways Logo
11:30 am - 11:55 amONT-PER
33h 25m2 stops
Qatar Airways Logo
10:45 pm - 6:19 pmPER-ONT
34h 34m2 stops
$1,483Qatar Airways
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Sun, Apr 26 - Mon, May 4
Multiple Airlines Logo
12:10 am - 12:30 amONT-PER
33h 20m2 stops
Multiple Airlines Logo
4:40 am - 6:00 pmPER-ONT
28h 20m2 stops
$1,542Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Ontario to Australia flights

Get data-powered insights and trends into flights from Ontario to Australia to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Ontario and Australia?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Ontario to Australia.

There is just one airline that flies from Ontario to Australia direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is to Sydney (SYD) and costs $926.

Which airlines provide the cheapest flights from Ontario to Australia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ontario to Australia were found on Delta ($925) and United Airlines ($963).

Good to know

Low seasonJune
Cheapest flight$464
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Ontario to Sydney

FAQs - booking Australia flights

  • How does KAYAK find such low prices on flights from Ontario to Australia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Australia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Australia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Australia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Australia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ontario to Australia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Australia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to Australia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Australia?

    The cheapest time of day to fly to Australia is generally in the morning, when round-trip flights cost $969 on average. Morning departures are around 26% cheaper than evening flights, on average. The most expensive time of day to fly to Australia is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,303.

Reviews of the top airline flying from Ontario to Australia

 
Need help choosing which airline to fly with from Ontario to Australia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9013 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

Older aircraft, no meal, only food was for purchase. Not impressed United.

4.0 OkayThomas, Nov 2025SFO - KOA
Read more United Airlines reviews

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

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

Information on your arrival and departure airports