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ONT - SYD

$471 Find cheap flights from Ontario to Sydney

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 Sydney departing on 8/4. 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
0 bags
Sat 6/29
Sat 7/6

Search hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Sydney, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Ontario to Sydney (ONT-SYD)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Sydney 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 and deals for you by selecting your travel dates.
Choose your dates
8:40 am - 7:45 pmONT-SYD
40h 05m1 stop
9:40 pm - 8:40 pmSYD-ONT
18h 00m1 stop
$730Hawaiian Airlines
Find Deal
Thu, Nov 7 - Sat, Nov 23
6:45 pm - 7:00 amONT-SYD
19h 15m1 stop
10:20 am - 10:07 amSYD-ONT
16h 47m1 stop
$848United Airlines
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Sun, Sep 1 - Wed, Sep 11
1:55 pm - 7:00 amONT-SYD
24h 05m1 stop
10:20 am - 5:56 pmSYD-ONT
24h 36m1 stop
$851United Airlines
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Wed, Jun 19 - Tue, Sep 17
6:35 pm - 7:00 amONT-SYD
19h 25m1 stop
10:20 am - 10:07 amSYD-ONT
16h 47m1 stop
$859United Airlines
Find Deal
Tue, Aug 13 - Sun, Aug 25
9:40 am - 7:45 pmONT-SYD
40h 05m1 stop
9:40 pm - 9:00 pmSYD-ONT
17h 20m1 stop
$1,069Hawaiian Airlines
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Tue, Oct 15 - Thu, Oct 31
12:10 am - 10:45 amONT-SYD
41h 35m1 stop
10:10 pm - 6:05 pmSYD-ONT
37h 55m1 stop
$1,726China Airlines
Find Deal
Mon, Sep 30 - Sun, Oct 13
12:10 am - 10:45 amONT-SYD
41h 35m1 stop
10:10 pm - 6:05 pmSYD-ONT
36h 55m1 stop
$1,733China Airlines
Find Deal
Sun, Sep 15 - Sun, Sep 29
3:01 pm - 7:30 amONT-SYD
21h 29m1 stop
4:50 pm - 5:48 pmSYD-ONT
19h 58m1 stop
$2,267American Airlines
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Wed, Nov 6 - Wed, Nov 20
3:01 pm - 7:30 amONT-SYD
21h 29m1 stop
4:50 pm - 5:54 pmSYD-ONT
20h 04m1 stop
$2,268American Airlines
Find Deal
Mon, Nov 25 - Mon, Dec 23
5:15 am - 9:20 amONT-SYD
33h 05m3 stops
11:20 am - 8:25 pmSYD-ONT
28h 05m2 stops
$2,323Air Canada
Find Deal
Thu, Nov 7 - Sat, Nov 23

Flights from Ontario to Sydney - Travel Insights & Trends

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

What is the cheapest month to fly from Ontario to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Sydney is May, where tickets cost $945 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is $1,514 and $1,230 respectively.

How far in advance should I book a flight from Ontario to Sydney?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Sydney, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 53 days before departure.

Which airlines provide the cheapest flights from Ontario to Sydney?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Ontario to Sydney were found on Hawaiian Airlines ($730) and United Airlines ($848). Hawaiian Airlines proposed the cheapest one-way flight at $653.

Good to know

Low season

April

High season

October

Cheapest flight

$471
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly with an average 26% increase in price.
Flight from Ontario to Sydney

When to book flights from Ontario to Sydney

Are your dates flexible? Find out the best times to travel from Ontario to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Sydney

  • What is the cheapest flight from Ontario to Sydney?

    In the last 3 days, the lowest price for a flight from Ontario to Sydney was $471 for a one-way ticket and $730 for a round-trip.

  • Do I need a passport to fly between Ontario and Sydney?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Ontario and on arrival in Sydney.

  • Which aircraft models fly most regularly from Ontario to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Sydney?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Ontario and Sydney, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Sydney, Hawaiian Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Sydney are Hawaiian Airlines and United Airlines. With an average price for the route of $1,063 and an overall rating of 8.0, Hawaiian Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,638 and an overall rating of 7.4.

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

    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 Sydney.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Ontario 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 Sydney?

    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 to Sydney with an airline and back to Ontario with another airline. Booking your flights between Ontario and SYD can sometimes prove cheaper using this method.

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

    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 to Sydney from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from Ontario to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Sydney? 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.
8.0
Hawaiian AirlinesOverall score based on 2300 reviews
7.2Food
7.3Entertainment
8.2Boarding
7.8Comfort
8.6Crew
Airline reviews

No food or entertainment because it was a short flight. Unfortunately the takeoff was delayed more than an hour

8.0 ExcellentNorman, May 2024KOA - HNL
Read more about Hawaiian Airlines reviews

No food or entertainment because it was a short flight. Unfortunately the takeoff was delayed more than an hour

The flight left and arrived on time. the only food offered on the 5+ hour flight was a cheese sandwich. Unlike Alaska Airlines there was no information on the website regarding food at all or any option to purchasse in advance. Otherwise, it was an excellent flight.

Parents with kids should all be in the same area. Sounds rude but who what's to fly 6hrs with crying and bratty kids. Just my opinion.

Ok, so I didn’t have seats, so got there very early. I was first in line only to be told, listen for your name for seats. The flight was boarding before they gave me a middle seat, way after others showed up who were given more favorable treatment. Ok, so , don’t show up early and obey all the rules??? Clearly, your gate clerks did not. What gives???

Short flight but delayed. Since its a short flight no food or entertainment necessary

We had an awesome flight attendant who came by and made sure we were okay. Checked on us often and even shared some snacks that she had brought on, like edamame with chili and garlic seasoning. Yummy!

Overall good experience. I'm just over 6ft with long legs and legroom could be better, but is on par with other airlines. Only real negative was turbulence but that's not the airlines fault.

We were not given the seats we reserved. But helpful attendant at gate gave us very nice seats.

Having movies helps past time I wish going Vegas had something

First flight got cancelled. Got booked for another flight departing 3.5 hours later which ended up being 1hr delayed... The flight was good when we finally ended up flying.

Business class Seats on the A350 from Nan to YVR were wonderful. The flight crew was okay but could do with better training. Toilets were clean but ran out of paper towels towards the end of the flight. The food/menu and the wine offered really needs considerable improvement. Dinner options were either Bolani, a beef sandwich (even this could be made much better), or paneer butter masala. Unfortunately, if you are not a fan of Fijian food, there isn’t much choice. Dessert was either turmeric ice cream or fruits but unfortunately, they were out of fruit! So the only option was turmeric ice cream. I’m not certain how many passengers like turmeric but I am not one of them. They need to cater to a more diverse group of people. Perhaps they need a new chef? The movies& tv shows were mostly older so I didn’t find that interesting either. It was however, fun to view the plane’s exterior cameras as we take off and land. The best thing about this flight are the business class seats.

Comfortable as one can get in Economy, food was very good, staff were super friendly & efficient.

Really liked the plane and business class seat. Food was ok but could be better. Service was very good.

Better connections, much better cabin crew, much cleaner cabin that Qantas, American and probably other carriers.

Better connections, much better cabin crews, much cleaner aircraft than Qantas, American and probably others.

Fiji left without me because American Airlines was too stupid to get to LAX on time. Fiji should have offered a standby on another flight but they told me tough luck. I will never fly with this company again.

The A350 aircraft business class experience was very good. Comfortable and well appointed pod, and supplemental bed pad available for sleeping. Food was very good.

Business class seats and amenities were excellent, crew very attentive. Slept well. Food good, lounge experience nice. Would fly them again. A350 aircraft excellent, very quiet.

The flight attendants were extremely friendly and helpful. Everything ran on time. I highly recommend Fiji Airways.

The experience was lovely in every respect. The crews were delightful.

Aisle chair was good and liked the foot bar preventing you from putting your foot in the isle, The breakfast on this international flight to Zurich was horrible (Europeans, specially, used to good food) may make this a dealbreaker for booking with United Airlines again. I agreed with my Spanish fellow passenger.

On time take off…US cabins look tired and need of refresh!

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Book cheap flights from Ontario to Sydney

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Sydney found on KAYAK in the last 72 hours.
8/4Sun
1 stop
35h 50mONT-SYD
$471
9/1Sun
1 stop
35h 50mONT-SYD
$521
9/8Sun
1 stop
35h 50mONT-SYD
$530
10/23Wed
1 stopHawaiian Airlines
40h 05mONT-SYD
$653
9/29Sun
1 stopUnited Airlines
24h 05mONT-SYD
$810
9/8Sun
1 stopUnited Airlines
19h 15mONT-SYD
$811
9/24Tue
1 stopChina Airlines
41h 35mONT-SYD
$1,018
10/22Tue
1 stopChina Airlines
41h 35mONT-SYD
$1,020
9/30Mon
2 stopsJapan Airlines
31h 10mONT-SYD
$1,283
6/13Thu
2 stopsJapan Airlines
31h 10mONT-SYD
$1,681

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Last minute flights from Ontario to Sydney

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Sydney that are departing in the next 10 days.
6/2Sun
multi-stopUnited Airlines
32h 10mONT-SYD
6/16Sun
multi-stopUnited Airlines
29h 07mSYD-ONT
$847
6/2Sun
multi-stopUnited Airlines
32h 10mONT-SYD
6/16Sun
multi-stopUnited Airlines
29h 07mSYD-ONT
$848
6/2Sun
multi-stopUnited Airlines
32h 10mONT-SYD
6/16Sun
multi-stopUnited Airlines
29h 07mSYD-ONT
$853
6/4Tue
multi-stopUnited Airlines
24h 05mONT-SYD
6/11Tue
multi-stopUnited Airlines
19h 25mSYD-ONT
$860
6/4Tue
multi-stopUnited Airlines
32h 45mONT-SYD
6/11Tue
multi-stopUnited Airlines
24h 08mSYD-ONT
$864
5/31Fri
multi-stopHawaiian Airlines
18h 15mONT-SYD
6/8Sat
multi-stopHawaiian Airlines
17h 05mSYD-ONT
$1,242
5/31Fri
multi-stopChina Airlines
41h 35mONT-SYD
7/1Mon
multi-stopChina Airlines
37h 30mSYD-ONT
$2,975
5/31Fri
multi-stopChina Airlines
41h 35mONT-SYD
6/9Sun
multi-stopChina Airlines
36h 55mSYD-ONT
$3,003
6/2Sun
multi-stopAmerican Airlines
22h 25mONT-SYD
6/4Tue
multi-stopAmerican Airlines
29h 33mSYD-ONT
$3,142
6/2Sun
multi-stopAmerican Airlines
22h 25mONT-SYD
6/12Wed
multi-stopAmerican Airlines
20h 07mSYD-ONT
$3,237

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Ontario - Sydney Flights

Departure:

Ontario (ONT)United States

Destination:

Sydney (SYD)Australia

Return flight deals:

Sydney - Ontario

Cabin classes:

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