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$600+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ONT
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$814
(Delta)

One-way from

$600
(lastminute.com)

Popular in

April

Cheapest in

August

Average price

$1,119
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. 15% potential increase in price ($199 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($92 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/299:25 amSYD - ONT
2 stops31h 17mDelta
Wed 6/186:00 amONT - SYD
2 stops31h 35mDelta
Deal found 3/25$814
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Thu 4/2410:20 amSYD - ONT
1 stop17h 45mUnited Airlines
Wed 5/73:10 pmONT - SYD
1 stop22h 45mUnited Airlines
Deal found 3/25$853
This Booking.com deal was found by Cheapflights users on 3/25. 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.
Wed 9/1710:10 pmSYD - ONT
1 stop36h 50mChina Airlines
Tue 9/2312:10 amONT - SYD
1 stop41h 35mChina Airlines
Deal found 3/25$1,114
This CheapTicketsDeal deal was found by Cheapflights users on 3/25. 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 CheapTicketsDeal is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/279:40 pmSYD - ONT
1 stop17h 10mHawaiian Airlines
Tue 6/109:50 amONT - SYD
1 stop40h 55mHawaiian Airlines
Deal found 3/25$1,132
This China Airlines deal was found by Cheapflights users on 3/25. 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.
Thu 5/1510:10 pmSYD - ONT
1 stop36h 50mMultiple Airlines
Thu 5/2912:10 amONT - SYD
2 stops45h 45mMultiple Airlines
Deal found 3/25$1,408
This Kissandfly.com deal was found by Cheapflights users on 3/25. 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.
Tue 7/110:20 amSYD - ONT
1 stop24h 23mLufthansa
Sat 7/191:19 pmONT - SYD
1 stop24h 36mLufthansa
Deal found 3/25$1,484

Cheapflights Fare Finder

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 March 26, 2025.
Use the filters below to find and compare flights from Sydney to Ontario that are best for you.

Fly from

Sydney

Fly to

Ontario

Route

Depart

Return

Price

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 5/29

9:25 am-11:42 pm

2 stops31h 17m

Ontario

Wed 6/18

6:00 am-6:35 am

2 stops31h 35m

$814

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 4/24

10:20 am-11:05 am

1 stop17h 45m

Ontario

Wed 5/7

3:10 pm-6:55 am

1 stop22h 45m

$853

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 9/17

10:10 pm-6:00 pm

1 stop36h 50m

Ontario

Tue 9/23

12:10 am-10:45 am

1 stop41h 35m

$1,114

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 4/27

9:40 pm-9:50 pm

1 stop17h 10m

Ontario

Tue 6/10

9:50 am-7:45 pm

1 stop40h 55m

$1,132

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 4/13

9:40 pm-9:50 pm

1 stop17h 10m

Ontario

Sat 4/26

2:27 pm-10:10 pm

2 stops38h 43m

$1,309

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 7/1

10:20 am-5:43 pm

1 stop24h 23m

Ontario

Sat 7/19

1:19 pm-6:55 am

1 stop24h 36m

$1,484

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 8/5

8:45 pm-6:04 pm

2 stops38h 19m

Ontario

Wed 8/13

12:00 pm-5:10 pm

2 stops36h 10m

$2,265

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 5/15

9:20 am-6:01 pm

2 stops25h 41m

Ontario

Fri 5/30

6:34 pm-7:20 am

3 stops43h 46m

$2,464

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 4/29

9:40 pm-9:50 pm

1 stop17h 10m

$600

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 6/2

4:20 pm-9:55 pm

1 stop22h 35m

$623

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 18 results
1
2

Compare providers for flights from Sydney to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to Ontario in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Ontario

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 $326). 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 March 26, 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 Delta. 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

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

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

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

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
722 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

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.
Delta
8.0
Very good
7,891 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

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
2,331 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

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
3,539 reviews
Japan Airlines
8.3
Very good
1,440 reviews

Overall

8.3

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Food

7.7

Crew

8.7

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 Delta. Our recent data shows that you can find tickets from as low as $814 on this airline. Additional options worth looking into are United Airlines and China Airlines, starting at $853 and $1,114 round-trip. Users have found that Delta is 26% cheaper than the other options available to this destination.

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

    $600 is the cheapest one-way deal found within the past few days, from Hawaiian Airlines. You may also be able to find cheap deals on China Airlines and United Airlines, with prices starting from $713 and $743, 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 $326). 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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