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$491 Find Cheap Flights from Ontario to Australia - Compare and Save

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 5 days
Sydney
Sydney1 stop$989
Brisbane
Brisbane1 stop$1,095
Perth
Perth2 stops$1,621
Sydney
Sydney1 stop$989
Brisbane
Brisbane1 stop$1,095
Perth
Perth2 stops$1,621

Book Cheap Ontario to Australia Plane Tickets

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Australia

Wed, Feb 3 - Sun, Feb 14
Multiple Airlines Logo
7:00 am - 7:45 pmONT  Ontario-SYD Sydney Kingsford Smith
17h 45m1 stop Honolulu
Multiple Airlines Logo
9:40 pm - 9:28 pmSYD  Sydney Kingsford Smith-ONT Ontario
18h 48m1 stop Honolulu
$989Multiple Airlines
Sun, Feb 21 - Sun, Mar 7
Multiple Airlines Logo
9:00 am - 7:45 pmONT  Ontario-SYD Sydney Kingsford Smith
39h 45m1 stop Honolulu
Multiple Airlines Logo
9:40 pm - 9:28 pmSYD  Sydney Kingsford Smith-ONT Ontario
18h 48m1 stop Honolulu
$994Multiple Airlines
Wed, Feb 3 - Sun, Feb 7
Multiple Airlines Logo
7:00 am - 7:45 pmONT  Ontario-SYD Sydney Kingsford Smith
17h 45m1 stop Honolulu
Multiple Airlines Logo
9:40 pm - 9:18 pmSYD  Sydney Kingsford Smith-ONT Ontario
18h 38m1 stop Honolulu
$996Multiple Airlines
Sun, Feb 21 - Tue, Mar 2
Multiple Airlines Logo
9:00 am - 7:45 pmONT  Ontario-SYD Sydney Kingsford Smith
39h 45m1 stop Honolulu
Multiple Airlines Logo
9:40 pm - 9:28 pmSYD  Sydney Kingsford Smith-ONT Ontario
18h 48m1 stop Honolulu
$999Multiple Airlines
Tue, Nov 17 - Tue, Dec 1
Multiple Airlines Logo
9:55 am - 7:45 pmONT  Ontario-SYD Sydney Kingsford Smith
38h 50m1 stop Honolulu
Multiple Airlines Logo
9:40 pm - 9:25 pmSYD  Sydney Kingsford Smith-ONT Ontario
18h 45m1 stop Honolulu
$1,013Multiple Airlines
Thu, Oct 29 - Sun, Nov 8
Multiple Airlines Logo
7:00 am - 7:45 pmONT  Ontario-SYD Sydney Kingsford Smith
18h 45m1 stop Honolulu
Multiple Airlines Logo
9:40 pm - 10:43 pmSYD  Sydney Kingsford Smith-ONT Ontario
20h 03m1 stop Honolulu
$1,027Multiple Airlines
Wed, Feb 3 - Sat, Feb 20
Multiple Airlines Logo
7:00 am - 7:45 pmONT  Ontario-SYD Sydney Kingsford Smith
17h 45m1 stop Honolulu
Multiple Airlines Logo
9:40 pm - 9:28 pmSYD  Sydney Kingsford Smith-ONT Ontario
18h 48m1 stop Honolulu
$1,037Multiple Airlines
Mon, Feb 8 - Mon, Feb 15
Multiple Airlines Logo
7:00 am - 11:35 pmONT  Ontario-MEL Melbourne
21h 35m2 stops Honolulu Sydney Kingsford Smith
Multiple Airlines Logo
9:00 pm - 9:28 pmMEL  Melbourne-ONT Ontario
43h 28m2 stops Sydney Kingsford Smith Honolulu
$1,042Multiple Airlines
Mon, Oct 19 - Mon, Nov 2
United Airlines Logo
4:03 pm - 9:15 amONT  Ontario-MEL Melbourne
23h 12m1 stop San Francisco
United Airlines Logo
12:45 pm - 12:29 pmMEL  Melbourne-ONT Ontario
18h 44m1 stop San Francisco
$1,118United Airlines
Mon, Oct 19 - Mon, Nov 2
United Airlines Logo
4:03 pm - 9:15 amONT  Ontario-MEL Melbourne
23h 12m1 stop San Francisco
United Airlines Logo
12:45 pm - 12:29 pmMEL  Melbourne-ONT Ontario
18h 44m1 stop San Francisco
$1,120United Airlines
Booking Insights

Price, demand and travel trends for Ontario to Australia flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Ontario to Australia right now?

The cheapest fares from Ontario to Australia on KAYAK in the last week were to Sydney Kingsford Smith (SYD) from $989 round-trip, and to Melbourne (MEL) from $1,042 round-trip.

Which airport in Australia is the cheapest to fly to from Ontario?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Australia are:

• Sydney Kingsford Smith (SYD) from $1,080
• Melbourne (MEL) from $1,111

What's the cheapest time of day to fly from Ontario to Australia?

Data from the past 12 months shows it's cheapest to fly to Australia during the morning with average prices of $1,080. The evening is the most expensive time to fly, with average prices of $1,118.

Find deals

Key details for Ontario to Australia flights

Low season

March

Cheapest flight

$491
The most popular month to fly with an average 75% increase in travelers.
One-way flight from Ontario to Sydney

Your Ontario to Australia flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Ontario to Australia?

    Yes. Fares from Ontario to Australia are low right now. As a rule of thumb, a round-trip under $1,049 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Ontario to Australia?

    Over the past 12 months, round-trip fares from Ontario to Australia have ranged from $1,049 to $1,206.

  • What are the main airports serving Australia?

    Flights to Australia use two main airports, Melbourne (MEL) and Sydney Kingsford Smith (SYD).

  • What airlines fly nonstop from Ontario to Australia?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Ontario to Australia. However, United Airlines offers a one-stop option.

  • Which cabin classes are available on flights from Ontario to Australia?

    On flights from Ontario to Australia you can book Economy Class or First Class.

  • What are some popular landmarks in Australia?

    KAYAK travelers' favorite landmarks in Australia include:

    • Sydney Opera House
    • Marvel Stadium
    • Melbourne Cricket Ground
    • Crown Casino

Your guide to booking Ontario to Australia flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for April when flights are typically cheapest and avoid December when prices are at their highest.
  • Flying on Wednesday is usually the cheapest. Flights on Friday cost about 38% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Sydney Kingsford Smith (SYD) is the cheapest airport to fly into from Ontario. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Sydney, which is the most popular destination in Australia. From there, it's easy to continue on to other popular destinations such as Melbourne, Brisbane and Perth.

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 10324 reviews
7.7Boarding
7.1Entertainment
6.7Food
8.1Crew
7.3Comfort
Airline reviews

The seats were very uncomfortable. I paid for the front economy. i swear they added a row of seats in there. It was so tight, that I could measure the distance between my seat and the one in front from my elbow to the tips of my fingers plus six inches. The seat cushion was completely worn out. The dinner was very good. Thank you for having a vegetarian option as a standard. But breakfast was nothing but sugar. that's not food. The crew was crabby and rude, especially in regards to coming to the back gallery. And the entertainment choice: why would you put violent movies on the choice? the Godfather? Some movies with black women being beaten over the head with clubs? What the heck? You know that when there is a movie on a plane, everyone gets to watch it. Why choose the most violent titles possible? The total number of movies were very limited, and the television, even more so. No games were available on the set. The wellness section was nice, thank you. I appreciated a galley in the middle where I could stand. The seats were unbearable.

4.0 OkayKirstin, Jul 2026
Read more United Airlines reviews

The seats were very uncomfortable. I paid for the front economy. i swear they added a row of seats in there. It was so tight, that I could measure the distance between my seat and the one in front from my elbow to the tips of my fingers plus six inches. The seat cushion was completely worn out. The dinner was very good. Thank you for having a vegetarian option as a standard. But breakfast was nothing but sugar. that's not food. The crew was crabby and rude, especially in regards to coming to the back gallery. And the entertainment choice: why would you put violent movies on the choice? the Godfather? Some movies with black women being beaten over the head with clubs? What the heck? You know that when there is a movie on a plane, everyone gets to watch it. Why choose the most violent titles possible? The total number of movies were very limited, and the television, even more so. No games were available on the set. The wellness section was nice, thank you. I appreciated a galley in the middle where I could stand. The seats were unbearable.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Easy of boarding, helpfully staff at check in, surprisingly comfortable seating

My flight time was changed without any notification to me which ruined my time sensitive plans so I ended up completely changing my travel plans and no reimbursement.

Terrible. Our first time back on United for 10 years, the seats in Polaris class are small and uncomfortable. They have squished too many people in to get more $$$. The staff are not friendly and not wanting to accommodate. I asked for two salads rather than a main meal and was advised no we wont do that. Then asked what I would like for breakfast and given something else anyway. I will not be flying United International anytime soon.

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

Smooth flight. As always dinner could have been more generous. Breakfast was great.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

Moody attendants that can barely look up at the passengers. I’m all for people having an off day, but you can tell some Untied Airlines Employees have lost their zeal for their jobs

Great checkin experience and flight crew were very friendly and helpful

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