$522 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 3/13. 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
Sydney1 stop$1,051
Brisbane
Brisbane1 stop$985
Perth
Perth3 stops$1,417
Townsville
Townsville2 stops$1,619
Sydney
Sydney1 stop$1,051
Brisbane
Brisbane1 stop$985
Perth
Perth3 stops$1,417
Townsville
Townsville2 stops$1,619

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, Feb 2 - Mon, Feb 9
American Airlines Logo
6:00 am - 5:00 am
ONT
-
MEL
28h 00m
1 stop
American Airlines Logo
4:05 pm - 10:48 pm
MEL
-
ONT
25h 43m
1 stop
$975American Airlines
Mon, Feb 2 - Mon, Feb 9
American Airlines Logo
9:59 am - 5:00 am
ONT
-
MEL
24h 01m
2 stops
American Airlines Logo
4:05 pm - 6:45 pm
MEL
-
ONT
21h 40m
1 stop
$980American Airlines
Fri, Jan 30 - Mon, Feb 9
United Airlines Logo
6:39 pm - 7:30 am
ONT
-
BNE
18h 51m
1 stop
United Airlines Logo
11:40 am - 11:18 am
BNE
-
ONT
17h 38m
1 stop
$985United Airlines
Sun, Mar 8 - Sun, Mar 22
American Airlines Logo
11:58 pm - 5:00 am
ONT
-
MEL
35h 02m
1 stop
American Airlines Logo
12:00 pm - 7:09 pm
MEL
-
ONT
25h 09m
2 stops
$987American Airlines
Fri, Jan 30 - Mon, Feb 9
United Airlines Logo
5:05 am - 7:30 am
ONT
-
BNE
32h 25m
2 stops
United Airlines Logo
11:40 am - 11:18 am
BNE
-
ONT
17h 38m
1 stop
$989United Airlines
Tue, Mar 3 - Tue, Mar 10
Hawaiian Airlines Logo
8:41 am - 7:45 pm
ONT
-
SYD
40h 04m
1 stop
Hawaiian Airlines Logo
9:40 pm - 8:55 pm
SYD
-
ONT
17h 15m
1 stop
$1,051Hawaiian Airlines
Fri, Jul 3 - Tue, Jul 14
Multiple Airlines Logo
7:50 am - 6:50 pm
ONT
-
SYD
18h 00m
1 stop
Multiple Airlines Logo
8:45 pm - 10:20 pm
SYD
-
ONT
18h 35m
1 stop
$1,063Multiple Airlines
Sun, Feb 1 - Sun, Feb 15
Multiple Airlines Logo
8:13 am - 7:45 pm
ONT
-
SYD
40h 32m
1 stop
Multiple Airlines Logo
9:40 pm - 10:15 pm
SYD
-
ONT
19h 35m
1 stop
$1,080Multiple Airlines
Sun, Feb 15 - Sun, Feb 22
Hawaiian Airlines Logo
8:41 am - 7:45 pm
ONT
-
SYD
40h 04m
1 stop
Hawaiian Airlines Logo
9:40 pm - 10:15 pm
SYD
-
ONT
19h 35m
1 stop
$1,100Hawaiian Airlines
Mon, Feb 2 - Mon, Feb 16
Delta Logo
6:00 am - 8:30 am
ONT
-
SYD
31h 30m
2 stops
Delta Logo
2:15 pm - 11:49 pm
SYD
-
ONT
28h 34m
2 stops
$1,170Delta
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 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 American Airlines ($980) and United Airlines ($985).

Good to know

Cheapest flight$446
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 9174 reviews
7.3Comfort
7.1Entertainment
7.7Boarding
8.1Crew
6.6Food
Airline reviews

The flight crew where really good. Better then the crew from BNE to SFO

10.0 ExcellentVanessa, Jan 2026
SFO - IAD
Read more United Airlines reviews

The flight crew where really good. Better then the crew from BNE to SFO

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

left on time, reasonable boarding process arrived early luggage came out quickly

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

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.

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

Information on your arrival and departure airports