$465 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 2/28. 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$936
Brisbane
Brisbane1 stop$980
Perth
Perth2 stops$1,495
Townsville
Townsville2 stops$1,379
Sydney
Sydney2 stops$936
Brisbane
Brisbane1 stop$980
Perth
Perth2 stops$1,495
Townsville
Townsville2 stops$1,379

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

sáb., feb. 21 - sáb., feb. 28
Delta Logo
6:00 am - 6:50 am
ONT
-
SYD
29h 50m2 stops
Delta Logo
2:15 pm - 9:44 pm
SYD
-
ONT
26h 29m2 stops
$936Delta
dom., ene. 18 - dom., feb. 1
United Airlines Logo
6:39 pm - 9:15 am
ONT
-
SYD
19h 36m1 stop
United Airlines Logo
12:10 pm - 11:18 am
SYD
-
ONT
18h 08m1 stop
$964United Airlines
dom., ene. 18 - dom., feb. 1
United Airlines Logo
1:53 pm - 6:20 am
ONT
-
SYD
21h 27m1 stop
United Airlines Logo
12:10 pm - 11:18 am
SYD
-
ONT
18h 08m1 stop
$965United Airlines
vie., feb. 20 - vie., feb. 27
American Airlines Logo
6:15 am - 9:30 am
ONT
-
MEL
32h 15m2 stops
American Airlines Logo
4:05 pm - 10:29 pm
MEL
-
ONT
25h 24m1 stop
$980American Airlines
dom., ene. 25 - dom., feb. 1
ANA Logo
6:39 pm - 7:30 am
ONT
-
BNE
18h 51m1 stop
ANA Logo
11:40 am - 11:18 am
BNE
-
ONT
17h 38m1 stop
$1,005ANA
vie., jun. 12 - jue., jun. 18
Multiple Airlines Logo
7:50 am - 11:35 pm
ONT
-
MEL
22h 45m2 stops
Multiple Airlines Logo
5:05 pm - 10:20 pm
MEL
-
ONT
22h 15m2 stops
$1,113Multiple Airlines
sáb., ene. 31 - dom., feb. 15
American Airlines Logo
12:57 pm - 9:30 am
ONT
-
MEL
25h 33m2 stops
American Airlines Logo
12:00 pm - 10:07 pm
MEL
-
ONT
29h 07m2 stops
$1,130American Airlines
jue., jul. 2 - sáb., jul. 18
Multiple Airlines Logo
7:50 am - 10:35 pm
ONT
-
ADL
22h 15m2 stops
Multiple Airlines Logo
12:40 pm - 10:20 pm
ADL
-
ONT
26h 10m2 stops
$1,263Multiple Airlines
dom., abr. 5 - lun., abr. 27
Qatar Airways Logo
6:00 am - 6:35 pm
ONT
-
PER
45h 35m2 stops
Qatar Airways Logo
3:40 pm - 10:32 pm
PER
-
ONT
45h 52m2 stops
$1,495Qatar Airways
vie., feb. 20 - vie., feb. 27
Qatar Airways Logo
6:14 am - 11:55 am
ONT
-
PER
37h 41m2 stops
Qatar Airways Logo
3:55 pm - 11:32 pm
PER
-
ONT
47h 37m2 stops
$1,536Qatar Airways
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 ($936) and United Airlines ($964).

Good to know

Cheapest flight$465
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.

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 9138 reviews
6.6Food
7.3Comfort
8.1Crew
7.1Entertainment
7.7Boarding
Airline reviews

It was great with United overall except for two things. 1) It was a 5-hour flight and we were with kids, so we were asking for extra snacks. They were extremely reticent to dole them out even though there wasn't any meal and the kids were starting to hit their limit towards the end. 2) Baggage didn't arrive until 80 minutes after we landed.

6.0 GoodTobin, Jan 2026
LAX - CUN
Read more United Airlines reviews

It was great with United overall except for two things. 1) It was a 5-hour flight and we were with kids, so we were asking for extra snacks. They were extremely reticent to dole them out even though there wasn't any meal and the kids were starting to hit their limit towards the end. 2) Baggage didn't arrive until 80 minutes after we landed.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

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.

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

Information on your arrival and departure airports