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ONT - SYD

Find cheap flights from Ontario to Sydney from $565

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 6/26. 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
Fri 6/7
Fri 6/14

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 43,968,530 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
10:00 am - 7:45 pmONT-SYD
40h 45m1 stop
9:40 pm - 9:55 pmSYD-ONT
17h 15m1 stop
$1,038Hawaiian Airlines
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Tue, May 14 - Sun, May 19
9:50 am - 2:40 pmONT-SYD
35h 50m1 stop
4:20 pm - 9:55 pmSYD-ONT
22h 35m1 stop
$1,156
Find Deal
Sun, Aug 4 - Mon, Aug 19
6:35 pm - 7:00 amONT-SYD
19h 25m1 stop
10:20 am - 10:07 amSYD-ONT
16h 47m1 stop
$1,193United Airlines
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Mon, Aug 5 - Mon, Aug 19
8:30 am - 7:45 pmONT-SYD
18h 15m1 stop
9:40 pm - 9:45 pmSYD-ONT
17h 05m1 stop
$1,222Hawaiian Airlines
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Wed, May 29 - Tue, Jun 18
9:50 am - 2:40 pmONT-SYD
35h 50m1 stop
4:20 pm - 9:55 pmSYD-ONT
22h 35m1 stop
$1,247
Find Deal
Fri, Jul 5 - Sat, Jul 13
5:15 am - 7:00 amONT-SYD
32h 45m2 stops
10:20 am - 5:28 pmSYD-ONT
24h 08m2 stops
$1,487United Airlines
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Wed, Jun 26 - Sun, Jul 21
4:36 pm - 7:05 amONT-SYD
21h 29m2 stops
9:15 am - 3:51 pmSYD-ONT
23h 36m2 stops
$1,597American Airlines
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Wed, Jun 5 - Wed, Jun 12
6:10 am - 7:00 amONT-SYD
31h 50m1 stop
10:20 am - 10:45 pmSYD-ONT
29h 25m1 stop
$1,635Lufthansa
Find Deal
Thu, Jun 27 - Wed, Jul 10
12:53 pm - 7:05 amONT-SYD
25h 12m2 stops
9:15 am - 6:22 pmSYD-ONT
26h 07m2 stops
$1,698American Airlines
Find Deal
Wed, May 22 - Tue, May 28
6:50 am - 6:35 amONT-SYD
30h 45m2 stops
9:25 am - 4:36 pmSYD-ONT
24h 11m2 stops
$1,920Delta
Find Deal
Tue, May 14 - Sun, May 19

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 $946 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is $1,510 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 ($1,038) and United Airlines ($1,193). Hawaiian Airlines proposed the cheapest one-way flight at $615.

Good to know

Low season

April

High season

January

Cheapest flight

$565
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly and prices are also 21% lower on average.
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 $565 for a one-way ticket and $1,038 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 SkyTeam 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 2321 reviews
7.2Food
8.2Boarding
7.8Comfort
7.3Entertainment
8.6Crew
Airline reviews

When I got into Maui I had a layover but there was a flight to Honolulu earlier. I asked the gate agent to see if I could get on the earlier flight to get home sooner. Ke'van is so great! He was very helpful and friendly and I appreciate him very much

8.0 ExcellentEric, May 2024OGG - HNL
Read more about Hawaiian Airlines reviews

When I got into Maui I had a layover but there was a flight to Honolulu earlier. I asked the gate agent to see if I could get on the earlier flight to get home sooner. Ke'van is so great! He was very helpful and friendly and I appreciate him very much

Unable to perform online check in using Hawaiian Airlines APP Only ONE meal choice available - Totally unacceptable Low Airline ranking compared to other International airlines and service Old Airplane (A330-200) Entertainment system - Outdated Total Score - Mediocre

This flight was delayed approximately 4 hours due to bad weather in HNL.

It was great with the exception of a rude desk member on the way back. And a terrible sandwich on the way back.

One of the best flights Ive had in a long time

Flight delayed then cancelled then gate changed two times then baggage lost.

My flight was canceled minutes before boarding started. It took three hours to get rebooked and it was on another airline overnight with another stop added. All I got was two $15 food coupons.

The plane is extremely loud and there’s no place to charge devices.

Not great to be very honest. Our flight was delayed after we sat at the airport until 15 minutes after we were supposed to leave . We were then notified the plane was being worked on “and the parts were out in the ground and still not finished .” Even though the work started the evening before and they knew it wasn’t fixed. . Then we were told it would be a 1:15 pm boarding time so we waited then at 1:45pm we were told it would be an 11:15pm boarding . It was changed to and 3:55am boarding the next morning . We lost out on a day in Hawaii and a night of our VRBO rental.

Safety record impeccable and important since flying many hours and thousands of miles over ocean.

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.

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.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

the head jack on my seat didn't work and the power outlet didn't work for my seat

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.
6/26Wed
1 stop
36h 00mONT-SYD
$565
6/21Fri
1 stop
36h 00mONT-SYD
$595
5/29Wed
1 stopHawaiian Airlines
18h 15mONT-SYD
$615
5/29Wed
1 stopHawaiian Airlines
18h 15mONT-SYD
$631
8/5Mon
2 stopsUnited Airlines
32h 00mONT-SYD
$817
6/25Tue
1 stopUnited Airlines
24h 05mONT-SYD
$1,007
5/29Wed
2 stopsAir Canada
32h 20mONT-SYD
$1,146
6/3Mon
2 stopsAir Canada
32h 00mONT-SYD
$1,156
8/5Mon
1 stopChina Airlines
41h 00mONT-SYD
$1,175
8/5Mon
1 stopChina Airlines
41h 00mONT-SYD
$1,176

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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.
5/9Thu
multi-stopHawaiian Airlines
40h 45mONT-SYD
5/12Sun
multi-stopHawaiian Airlines
17h 25mSYD-ONT
$978
5/9Thu
multi-stopHawaiian Airlines
40h 45mONT-SYD
7/4Thu
multi-stopHawaiian Airlines
17h 15mSYD-ONT
$1,120
5/10Fri
multi-stop
35h 40mONT-SYD
5/30Thu
multi-stop
21h 15mSYD-ONT
$1,146
5/10Fri
multi-stop
35h 40mONT-SYD
6/1Sat
multi-stop
22h 25mSYD-ONT
$1,216
5/11Sat
multi-stopAmerican Airlines
25h 12mONT-SYD
5/14Tue
multi-stopAmerican Airlines
27h 53mSYD-ONT
$2,148
5/13Mon
multi-stopUnited Airlines
27h 18mONT-SYD
5/20Mon
multi-stopUnited Airlines
16h 41mSYD-ONT
$2,192
5/13Mon
multi-stopUnited Airlines
32h 45mONT-SYD
5/20Mon
multi-stopUnited Airlines
16h 41mSYD-ONT
$2,197
5/13Mon
multi-stopChina Airlines
41h 35mONT-SYD
5/19Sun
multi-stopChina Airlines
36h 55mSYD-ONT
$2,386
5/13Mon
multi-stopChina Airlines
41h 35mONT-SYD
5/21Tue
multi-stopChina Airlines
36h 55mSYD-ONT
$2,406
5/10Fri
multi-stopAmerican Airlines
49h 31mONT-SYD
5/30Thu
multi-stopAmerican Airlines
33h 55mSYD-ONT
$3,213

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Ontario - Sydney Flights

Departure:

Ontario (undefined)United States

Destination:

Sydney (SYD)Australia

Return flight deals:

Sydney - Ontario

Cabin classes:

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