$600+ Cheap flights from Ontario (ONT) to Sydney (SYD)
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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SYD
Apr 16 — Apr 231
1 adult, Economy
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Find cheap flights from Ontario to Sydney with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Sydney (SYD). 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 April 11, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,057 (Alaska Airlines) |
One-way from | $600 (flugladen.de) |
Popular in | May |
Cheapest in | April |
Average price | $828 |
Find flight deals from Ontario to Sydney
Cheapest flights from Ontario to SydneyExplore the most affordable flight options available from Ontario to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.
Explore the most affordable flight options available from Ontario to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.
This Alaska Airlines deal was found by Cheapflights users on 4/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/89:00 amONT - SYD
1 stop17h 45mAlaska Airlines
Fri 8/159:40 pmSYD - ONT
2 stops32h 46mAlaska Airlines
Deal found 4/10![Alaska Airlines logo]()
$1,057
This Delta deal was found by Cheapflights users on 4/9. 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.
Sun 5/184:57 pmONT - SYD
2 stops20h 38mDelta
Wed 6/119:25 amSYD - ONT
2 stops31h 21mDelta
Deal found 4/9![Delta logo]()
$1,276
This United Airlines deal was found by Cheapflights users on 4/10. 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.
Tue 7/16:39 pmONT - SYD
1 stop19h 16mUnited Airlines
Sun 7/2010:20 amSYD - ONT
1 stop18h 54mUnited Airlines
Deal found 4/10![United Airlines logo]()
$1,302
This Hawaiian Airlines deal was found by Cheapflights users on 4/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/49:45 amONT - SYD
1 stop41h 00mHawaiian Airlines
Tue 5/139:40 pmSYD - ONT
1 stop17h 10mHawaiian Airlines
Deal found 4/10![Hawaiian Airlines logo]()
$1,310
This Fiji Airways deal was found by Cheapflights users on 4/9. 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 Fiji Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2612:46 pmONT - SYD
2 stops29h 59mMultiple Airlines
Tue 9/21:15 pmSYD - ONT
2 stops25h 29mMultiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$1,460
This Kissandfly.com deal was found by Cheapflights users on 4/10. 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 7/11:19 pmONT - SYD
1 stop24h 36mLufthansa
Sun 7/2010:20 amSYD - ONT
2 stops28h 51mLufthansa
Deal found 4/10![Lufthansa logo]()
$1,576
This KAYAK deal was found by Cheapflights users on 4/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3112:45 amONT - SYD
1 stop41h 00mChina Airlines
Sun 9/2110:10 pmSYD - ONT
1 stop36h 50mChina Airlines
Deal found 4/10![China Airlines logo]()
$1,788
This oojo deal was found by Cheapflights users on 4/10. 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.
Tue 6/106:00 amONT - SYD
2 stops31h 20mJapan Airlines
Tue 6/178:55 amSYD - ONT
2 stops50h 09mJapan Airlines
Deal found 4/10![Japan Airlines logo]()
$2,403
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Sydney 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 April 11, 2025.
Use the filters below to find and compare flights from Ontario to Sydney that are best for you.
Fly from
Ontario
Fly to
Sydney
Route
Depart
Return
Price
OntarioSydney
ONT - SYD
ONTSYD
Ontario
Fri 8/8
9:00 am-7:45 pm
1 stop17h 45m
Sydney Kingsford Smith
Sun 8/17
9:40 pm-11:05 am
2 stops30h 25m
$1,057
OntarioSydney
ONT - SYD
ONTSYD
Ontario
Sun 5/18
4:57 pm-6:35 am
2 stops20h 38m
Sydney Kingsford Smith
Wed 6/11
9:25 am-11:46 pm
2 stops31h 21m
$1,276
OntarioSydney
ONT - SYD
ONTSYD
Ontario
Tue 7/1
6:39 pm-6:55 am
1 stop19h 16m
Sydney Kingsford Smith
Sun 7/20
10:20 am-12:14 pm
1 stop18h 54m
$1,302
OntarioSydney
ONT - SYD
ONTSYD
Ontario
Sun 5/4
9:45 am-7:45 pm
1 stop41h 00m
Sydney Kingsford Smith
Tue 5/13
9:40 pm-9:50 pm
1 stop17h 10m
$1,310
OntarioSydney
ONT - SYD
ONTSYD
Ontario
Tue 8/26
12:46 pm-11:45 am
2 stops29h 59m
Sydney Kingsford Smith
Tue 9/2
1:15 pm-9:44 pm
2 stops25h 29m
$1,460
OntarioSydney
ONT - SYD
ONTSYD
Ontario
Tue 7/1
1:19 pm-6:55 am
1 stop24h 36m
Sydney Kingsford Smith
Sun 7/20
10:20 am-10:11 pm
2 stops28h 51m
$1,576
OntarioSydney
ONT - SYD
ONTSYD
Ontario
Thu 7/31
12:45 am-10:45 am
1 stop41h 00m
Sydney Kingsford Smith
Sun 9/21
10:10 pm-6:00 pm
1 stop36h 50m
$1,788
OntarioSydney
ONT - SYD
ONTSYD
Ontario
Tue 6/10
6:00 am-6:20 am
2 stops31h 20m
Sydney Kingsford Smith
Tue 6/17
8:55 am-6:04 pm
2 stops50h 09m
$2,403
OntarioSydney
ONT - SYD
ONTSYD
Ontario
Wed 8/13
9:00 am-7:45 pm
1 stop17h 45m
$600
OntarioSydney
ONT - SYD
ONTSYD
Ontario
Tue 5/6
8:59 pm-7:45 pm
2 stops29h 46m
$630
Showing 1-10 of 16 results
Compare providers for flights from Ontario to Sydney
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 Ontario to Sydney in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Sydney flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Sydney 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 Ontario-Sydney 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 Ontario to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from Ontario 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 Ontario to Sydney
What is the cheapest month to book a flight from Ontario to Sydney?
Currently, February is the cheapest month in which you can book a flight from Ontario to Sydney (average of $1,046). Flying from Ontario to Sydney in December is currently the most expensive (average of $1,643). 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.
What is the cheapest time of day to fly from ONT to SYD?
Find hourly flight availability from Ontario to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 11, 2025.
One of the essential ways to save on airfare from Ontario to Sydney is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 26% on airfare.
Rainfall in Sydney by month
Plan your trip to Sydney by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.
Temperature in Sydney by month
Plan your trip to Sydney by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).
Reviews of airlines servicing Sydney
Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated April 11, 2025.
See what other customers who have flown with China Airlines, Alaska Airlines and Delta from Ontario to Sydney have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
8.0
Food
7.8
Boarding
8.3
Overall
8.2
Crew
8.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2025
YVR - TPE
Entertainment
8.0
Food
7.8
Boarding
8.3
Overall
8.2
Crew
8.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2025
YVR - TPE
Entertainment
8.0
Food
7.8
Boarding
8.3
Overall
8.2
Crew
8.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2025
YVR - TPE
Entertainment
8.0
Food
7.8
Boarding
8.3
Overall
8.2
Crew
8.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2025
YVR - TPE
Entertainment
8.0
Food
7.8
Boarding
8.3
Overall
8.2
Crew
8.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2025
YVR - TPE
Entertainment
8.0
Food
7.8
Boarding
8.3
Overall
8.2
Crew
8.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2025
YVR - TPE
Related info for your journey
Find useful and relevant information for your journey from Ontario to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Ontario?
Book flights to Ontario if you plan to visit one of these locationsWollongong
Parramatta
Coogee
Manly
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Alternative routes for Ontario to Sydney
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Ontario to Sydney
Discover the top 3 airlines that operate flights from Ontario to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 11, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$732 | Average$855 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$909 | Average$1,062 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,042 | Average$1,086 | FlexibilityNo cancel fee | On-time74% |