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$519+ Cheap flights from Sydney (SYD) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ONT
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Sydney to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$860
(United Airlines)

One-way from

$519
(United Airlines)

Popular in

April

Cheapest in

September

Average price

$842
Provider with most accurate pricing for Sydney Kingsford Smith-Ontario flight deals.
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Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Ontario flights.
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From Sydney Kingsford Smith to Ontario
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One-way flight from Sydney Kingsford Smith to Ontario
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Highest demand for flights based on searches. 17% potential increase in price ($236 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($94 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Sydney to Ontario

Cheapest flights from Sydney to Ontario
Explore the most affordable flight options available from Sydney to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/214:15 pmSYD - ONT
1 stop17h 14mUnited Airlines
Sun 3/96:45 pmONT - SYD
1 stop20h 30mUnited Airlines
Deal found 2/19$858
This Kissandfly.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2312:10 pmSYD - ONT
1 stop27h 30mLufthansa
Tue 3/116:45 pmONT - SYD
1 stop20h 30mLufthansa
Deal found 2/20$877
This BestPriceTravel deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/219:40 pmSYD - ONT
1 stop19h 10mHawaiian Airlines
Tue 2/259:45 amONT - SYD
1 stop39h 00mHawaiian Airlines
Deal found 2/20$991
This Booking.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/110:10 pmSYD - ONT
1 stop37h 30mChina Airlines
Sun 9/712:45 amONT - SYD
1 stop41h 00mChina Airlines
Deal found 2/20$1,147
This China Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/236:10 pmSYD - ONT
2 stops41h 30mMultiple Airlines
Thu 9/412:45 amONT - SYD
1 stop41h 00mMultiple Airlines
Deal found 2/20$1,437
This oojo deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/248:45 pmSYD - ONT
2 stops44h 14mQatar Airways
Thu 5/811:46 amONT - SYD
2 stops36h 24mQatar Airways
Deal found 2/20$2,307

Find flights from Sydney to Ontario within your budget

Customize your flight search to find flights from Sydney to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Sydney

Fly to

Ontario

Route

Depart

Return

Price

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 3/7

11:50 am-9:59 pm

1 stop29h 09m

Ontario

Fri 3/14

1:40 pm-9:15 am

2 stops49h 35m

$860

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 4/27

9:40 pm-9:50 pm

1 stop17h 10m

Ontario

Fri 5/2

9:45 am-7:45 pm

1 stop41h 00m

$1,007

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 4/27

10:10 pm-6:00 pm

1 stop36h 50m

Ontario

Thu 5/1

12:10 am-10:45 am

1 stop41h 35m

$1,170

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 4/24

8:45 pm-11:59 pm

2 stops44h 14m

Ontario

Thu 5/8

11:46 am-5:10 pm

2 stops36h 24m

$2,307

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 3/21

5:25 pm-8:55 pm

1 stop21h 30m

Ontario

Fri 4/4

8:50 am-3:45 pm

1 stop36h 55m

$3,193

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 4/21

10:00 pm-10:10 pm

2 stops41h 10m

Ontario

Fri 4/25

12:50 pm-8:25 am

2 stops26h 35m

$9,174

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 2/25

11:50 am-9:59 pm

1 stop29h 09m

$519

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 3/13

11:50 am-9:59 pm

1 stop28h 09m

$522

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 4/21

4:20 pm-9:50 pm

1 stop22h 30m

$649

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 5/20

9:40 pm-9:55 pm

1 stop17h 15m

$651

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 14 results
1
2
  • Most accurate provider: When it comes to deals on Sydney-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sydney to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Sydney with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Sydney to Ontario

Get recent, data-driven insights about flights from Sydney to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Sydney to Ontario?

Currently, August is the cheapest month in which you can book a flight from Sydney to Ontario (average of $246). Flying from Sydney to Ontario in March is currently the most expensive (average of $315). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated February 20, 2025.
To help decide which airline to fly from Sydney to Ontario, see what other customers have to say about Japan Airlines, China Airlines and Hawaiian Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Japan Airlines
8.3
Very good
1,440 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

China Airlines
8.2
Very good
727 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Hawaiian Airlines
7.9
Good
2,317 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Qatar Airways
7.4
Good
3,609 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

United Airlines
7.4
Good
8,766 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Crew

8.7

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Reviews

1 / 20

10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Sydney to Ontario round-trip?

    Our cheapest airline available from Sydney to Ontario is United Airlines. Our recent data shows that you can find tickets from as low as $860 on this airline. Additional options worth looking into are Hawaiian Airlines and China Airlines, starting at $1,007 and $1,170 round-trip. Users have found that United Airlines is 20% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Sydney to Ontario one-way?

    $519 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Lufthansa and Hawaiian Airlines, with prices starting from $522 and $651, respectively.

  • Can I find deals for flights from Sydney to Ontario that include hotel bookings?

    Yes. In addition to deals on Sydney to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Ontario.

  • Can I find deals for business class flights from Sydney to Ontario?

    Yes. Cheapflights offers flight deals from Sydney to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sydney to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Sydney to Ontario (average of $246). Flying from Sydney to Ontario in March is currently the most expensive (average of $315). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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