$501+ Cheap flights from Ontario (ONT) to Australia
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SYD
Oct 5 — Oct 121
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Ontario to Australia 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 Australia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to AustraliaExplore the most affordable flight options available from Ontario to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
Explore the most affordable flight options available from Ontario to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
This oojo deal was found by Cheapflights users on 9/4. 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.
Wed 10/217:00 am -
1 stop17h 50m
Tue 11/39:40 pm -
1 stop19h 02m
Deal found 9/4![Multiple Airlines logo]()
$972
This oojo deal was found by Cheapflights users on 9/3. 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.
Wed 10/147:00 am -
1 stop17h 50m
Sun 1/319:40 pm -
1 stop18h 38m
Deal found 9/3![Multiple Airlines logo]()
$978
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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.
Mon 10/197:00 am -
1 stop17h 50m
Tue 11/109:40 pm -
1 stop19h 02m
Deal found 9/1![Multiple Airlines logo]()
$1,008
This oojo deal was found by Cheapflights users on 9/1. 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.
Mon 10/197:00 am -
1 stop17h 50m
Thu 11/269:40 pm -
1 stop18h 43m
Deal found 9/1![Multiple Airlines logo]()
$1,013
This SmartFares deal was found by Cheapflights users on 9/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:31 am -
1 stop40h 19m
Sat 10/38:45 pm -
1 stop17h 44m
Deal found 9/3![Multiple Airlines logo]()
$1,014
This oojo deal was found by Cheapflights users on 9/4. 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.
Sun 9/69:31 am -
1 stop40h 19m
Thu 9/108:45 pm -
1 stop18h 25m
Deal found 9/4![Multiple Airlines logo]()
$1,030
This Ovago deal was found by Cheapflights users on 9/4. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:00 am -
1 stop18h 45m
Fri 10/309:40 pm -
1 stop17h 49m
Deal found 9/4![Multiple Airlines logo]()
$1,040
This oojo deal was found by Cheapflights users on 9/4. 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.
Fri 10/307:00 am -
1 stop18h 45m
Thu 11/269:40 pm -
1 stop18h 43m
Deal found 9/4![Multiple Airlines logo]()
$1,047
This oojo deal was found by Cheapflights users on 9/2. 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.
Sat 10/247:00 am -
1 stop18h 45m
Sat 10/319:40 pm -
1 stop17h 49m
Deal found 9/2![Multiple Airlines logo]()
$1,049
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/197:00 am -
2 stops22h 35m
Tue 11/104:45 pm -
2 stops23h 57m
Deal found 9/4![Multiple Airlines logo]()
$1,062
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/267:00 am -
2 stops22h 25m
Tue 11/32:20 pm -
2 stops25h 22m
Deal found 9/4![Multiple Airlines logo]()
$1,063
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Mon 9/77:13 pm -
1 stop18h 17m
Wed 9/2310:30 am -
1 stop18h 42m
Deal found 9/3![United Airlines logo]()
$1,069
Best flights from Ontario to AustraliaDiscover carefully curated flight deals from Ontario to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
Discover carefully curated flight deals from Ontario to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Sat 10/311:35 pm -
1 stop23h 55m
Wed 11/411:20 am -
1 stop24h 41m
Deal found 9/2![United Airlines logo]()
$1,078
This United deal was found by Cheapflights users on 9/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/14:03 pm -
1 stop23h 27m
Mon 2/87:10 am -
2 stops27h 17m
Deal found 9/1![Multiple Airlines logo]()
$1,125
This Qatar Airways deal was found by Cheapflights users on 9/2. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:59 pm -
2 stops52h 31m
Fri 9/2510:10 pm -
2 stops37h 53m
Deal found 9/2![Qatar Airways logo]()
$1,627
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Mon 10/194:03 pm -
1 stop21h 27m
Wed 11/411:20 am -
1 stop19h 09m
Deal found 9/5![United Airlines logo]()
$1,079
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 11/41:29 pm -
2 stops24h 01m
Sun 11/1511:20 am -
1 stop19h 09m
Deal found 9/2![United Airlines logo]()
$1,083
This Alaska Airlines deal was found by Cheapflights users on 8/31. 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.
Thu 10/157:00 am -
2 stops38h 05m
Thu 10/228:20 am -
2 stops30h 09m
Deal found 8/31![Multiple Airlines logo]()
$1,225
This United Airlines deal was found by Cheapflights users on 9/2. 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 1/264:03 pm -
1 stop22h 17m
Tue 2/211:50 am -
1 stop16h 57m
Deal found 9/2![United Airlines logo]()
$1,095
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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 10/167:00 am -
2 stops33h 40m
Fri 10/232:50 pm -
2 stops23h 39m
Deal found 9/1![Multiple Airlines logo]()
$1,225
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sun 11/14:17 pm -
1 stop22h 03m
Tue 11/1711:50 am -
1 stop19h 39m
Deal found 9/4![United Airlines logo]()
$1,095
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sat 10/311:29 pm -
2 stops51h 01m
Wed 11/412:45 pm -
2 stops27h 06m
Deal found 9/4![United Airlines logo]()
$1,113
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Mon 10/196:32 pm -
2 stops23h 03m
Mon 10/2611:45 am -
1 stop18h 44m
Deal found 9/3![United Airlines logo]()
$1,117
This lol.travel deal was found by Cheapflights users on 8/31. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:13 am -
2 stops40h 32m
Tue 11/1010:45 pm -
2 stops35h 32m
Deal found 8/31![Qatar Airways logo]()
$1,941
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/274:17 pm -
1 stop23h 13m
Fri 10/3011:45 am -
1 stop18h 44m
Deal found 9/3![United Airlines logo]()
$1,145
This Mytrip deal was found by Cheapflights users on 9/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:10 am -
2 stops31h 45m
Sat 10/1012:45 am -
3 stops32h 15m
Deal found 9/4![Multiple Airlines logo]()
$1,763
This Qatar Airways deal was found by Cheapflights users on 9/5. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:12 pm -
2 stops34h 18m
Fri 9/2510:00 pm -
2 stops38h 39m
Deal found 9/5![Qatar Airways logo]()
$1,956
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sun 10/254:17 pm -
1 stop23h 03m
Sun 11/111:50 am -
1 stop19h 39m
Deal found 9/4![United Airlines logo]()
$1,145
This United Airlines deal was found by Cheapflights users on 9/1. 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 11/104:17 pm -
1 stop22h 03m
Thu 11/2611:50 am -
1 stop22h 34m
Deal found 9/1![United Airlines logo]()
$1,145
This Booking.com deal was found by Cheapflights users on 9/2. 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.
Sat 10/176:02 am -
3 stops33h 48m
Fri 10/2312:10 am -
3 stops35h 05m
Deal found 9/2![Multiple Airlines logo]()
$1,861
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/265:00 am -
2 stops34h 20m
Fri 10/3011:50 am -
1 stop18h 39m
Deal found 9/4![United Airlines logo]()
$1,149
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/185:00 am -
2 stops32h 55m
Wed 9/3010:20 am -
1 stop17h 03m
Deal found 9/4![United Airlines logo]()
$1,149
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 11/21:29 pm -
2 stops24h 51m
Thu 11/511:50 am -
1 stop25h 06m
Deal found 9/4![United Airlines logo]()
$1,149
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Sat 2/66:53 pm -
1 stop20h 37m
Mon 2/1512:45 pm -
1 stop18h 35m
Deal found 8/31![United Airlines logo]()
$1,165
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/187:13 pm -
2 stops23h 07m
Wed 9/306:30 am -
2 stops20h 53m
Deal found 9/4![United Airlines logo]()
$1,177
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 2/136:53 pm -
1 stop20h 37m
Sun 2/2112:45 pm -
1 stop18h 35m
Deal found 9/3![United Airlines logo]()
$1,195
This Gotogate deal was found by Cheapflights users on 9/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/183:14 pm -
3 stops38h 51m
Mon 9/216:55 pm -
3 stops38h 53m
Deal found 9/5![Multiple Airlines logo]()
$3,255
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 11/214:17 pm -
1 stop22h 03m
Sun 12/611:50 am -
1 stop16h 48m
Deal found 9/3![United Airlines logo]()
$1,195
This United Airlines deal was found by Cheapflights users on 9/1. 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 11/276:37 pm -
1 stop19h 43m
Sun 12/611:50 am -
1 stop16h 48m
Deal found 9/1![United Airlines logo]()
$1,195
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/187:13 pm -
1 stop18h 42m
Fri 9/2510:20 am -
1 stop17h 03m
Deal found 9/2![United Airlines logo]()
$1,195
This United Airlines deal was found by Cheapflights users on 9/3. 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 1/145:00 am -
2 stops58h 30m
Sun 1/2412:45 pm -
2 stops26h 35m
Deal found 9/3![United Airlines logo]()
$1,214
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/194:03 pm -
2 stops25h 37m
Mon 10/266:00 am -
2 stops23h 29m
Deal found 9/4![United Airlines logo]()
$1,239
Last-minute flights from Ontario to AustraliaDiscover last-minute flight deals from Ontario to Australia. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Australia. Data last updated September 5, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 9/4. 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.
Sun 9/69:31 am -
1 stop40h 19m
Thu 9/108:45 pm -
1 stop18h 25m
Deal found 9/4![Multiple Airlines logo]()
$1,030
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Mon 9/77:13 pm -
1 stop18h 17m
Wed 9/2310:30 am -
1 stop18h 42m
Deal found 9/3![United Airlines logo]()
$1,069
This SmartFares deal was found by Cheapflights users on 9/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:31 am -
1 stop40h 19m
Sat 10/38:45 pm -
1 stop17h 44m
Deal found 9/3![Multiple Airlines logo]()
$1,014
This oojo deal was found by Cheapflights users on 9/3. 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.
Wed 10/147:00 am -
1 stop17h 50m
Sun 1/319:40 pm -
1 stop18h 38m
Deal found 9/3![Multiple Airlines logo]()
$978
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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.
Mon 10/197:00 am -
1 stop17h 50m
Tue 11/109:40 pm -
1 stop19h 02m
Deal found 9/1![Multiple Airlines logo]()
$1,008
This oojo deal was found by Cheapflights users on 9/1. 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.
Mon 10/197:00 am -
1 stop17h 50m
Thu 11/269:40 pm -
1 stop18h 43m
Deal found 9/1![Multiple Airlines logo]()
$1,013
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/197:00 am -
2 stops22h 35m
Sun 11/810:00 am -
2 stops30h 42m
Deal found 9/4![Multiple Airlines logo]()
$1,062
This oojo deal was found by Cheapflights users on 9/4. 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.
Wed 10/217:00 am -
1 stop17h 50m
Tue 11/39:40 pm -
1 stop19h 02m
Deal found 9/4![Multiple Airlines logo]()
$972
This oojo deal was found by Cheapflights users on 9/2. 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.
Sat 10/247:00 am -
1 stop18h 45m
Sat 10/319:40 pm -
1 stop17h 49m
Deal found 9/2![Multiple Airlines logo]()
$1,049
This Ovago deal was found by Cheapflights users on 9/4. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:00 am -
1 stop18h 45m
Fri 10/309:40 pm -
1 stop17h 49m
Deal found 9/4![Multiple Airlines logo]()
$1,040
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/267:00 am -
2 stops22h 25m
Tue 11/32:20 pm -
2 stops25h 22m
Deal found 9/4![Multiple Airlines logo]()
$1,063
This oojo deal was found by Cheapflights users on 9/4. 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.
Fri 10/307:00 am -
1 stop18h 45m
Thu 11/269:40 pm -
1 stop18h 43m
Deal found 9/4![Multiple Airlines logo]()
$1,047
One-way flights from Ontario to AustraliaSearch for one-way flight options from Ontario to Australia. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
Search for one-way flight options from Ontario to Australia. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This SmartFares deal was found by Cheapflights users on 9/4. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:00 am -
1 stop17h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$501
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/267:00 am -
1 stop18h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$518
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/295:00 am -
2 stops32h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$519
This SmartFares deal was found by Cheapflights users on 8/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/139:31 am -
1 stop40h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Multiple Airlines logo]()
$524
This Cheapflightsfares deal was found by Cheapflights users on 9/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:31 am -
1 stop40h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$535
This SmartFares deal was found by Cheapflights users on 9/1. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:00 am -
1 stop18h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$537
This Booking.com deal was found by Cheapflights users on 8/31. 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.
Tue 12/19:00 am -
1 stop39h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Multiple Airlines logo]()
$539
This Booking.com deal was found by Cheapflights users on 9/1. 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.
Sun 9/209:31 am -
1 stop40h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$542
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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.
Mon 10/267:00 am -
2 stops30h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$545
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 10/197:00 am -
2 stops41h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$545
This Kissandfly.com deal was found by Cheapflights users on 9/1. 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.
Mon 9/211:56 pm -
1 stop23h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Lufthansa logo]()
$557
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Mon 9/215:00 am -
2 stops32h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$558
Find flight deals from Ontario to Australia
Keep the following information in mind while searching for Ontario to Australia flight deals. Data was last updated September 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $972 (oojo) |
One-way from | $501 (SmartFares) |
Popular in | December |
Cheapest in | May |
Average price | $975 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Australia 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 7,457,451 searches. Data last updated September 5, 2026.
Use the filters below to find and compare flights from Ontario to Australia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioSydney
ONT Ontario - SYD Sydney Kingsford Smith
ONTSYD
Ontario
Mon 9/28
1:24 pm-6:55 am
2 stops24h 31m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$558
OntarioSydney
ONT Ontario - SYD Sydney Kingsford Smith
ONTSYD
Ontario
Wed 2/17
6:53 pm-9:20 am
1 stop19h 27m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$558
OntarioSydney
ONT Ontario - SYD Sydney Kingsford Smith
ONTSYD
Ontario
Tue 10/20
5:00 am-7:55 am
2 stops32h 55m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$558
OntarioSydney
ONT Ontario - SYD Sydney Kingsford Smith
ONTSYD
Ontario
Wed 11/11
4:17 pm-9:20 am
1 stop22h 03m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$558
OntarioSydney
ONT Ontario - SYD Sydney Kingsford Smith
ONTSYD
Ontario
Wed 10/21
5:00 am-7:55 am
2 stops32h 55m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$558
OntarioSydney
ONT Ontario - SYD Sydney Kingsford Smith
ONTSYD
Ontario
Wed 10/28
1:29 pm-9:20 am
2 stops25h 51m
Sydney Kingsford Smith
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$558
Quickest round-trip
OntarioBrisbane
ONT Ontario - BNE Brisbane
ONTBNE
Ontario
Sun 9/20
7:13 pm-6:30 am
1 stop18h 17m
Brisbane
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$559
OntarioBrisbane
ONT Ontario - BNE Brisbane
ONTBNE
Ontario
Wed 1/27
6:53 pm-7:30 am
1 stop18h 37m
Brisbane
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$560
OntarioBrisbane
ONT Ontario - BNE Brisbane
ONTBNE
Ontario
Tue 12/1
1:40 pm-7:30 am
2 stops23h 50m
Brisbane
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$561
OntarioMelbourne
ONT Ontario - MEL Melbourne
ONTMEL
Ontario
Mon 9/28
4:03 pm-8:15 am
1 stop23h 12m
Melbourne
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$562
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia from Ontario with our price prediction graph.
ONT-SYD
ONT-MEL
ONT-BNE
ONT-OOL
ONT-PER
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 Australia
ONT-AU0
ONT-SYD
ONT-MEL
ONT-BNE
ONT-OOL
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Australia
Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated September 5, 2026.
Get a feel of what it's like to fly with United Airlines from Ontario to Australia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.6
Entertainment
7.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Food
6.6
Entertainment
7.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
Find useful and relevant information for your journey from Ontario to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Top regions
Alternative routes for Ontario to Australia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Australia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Australia by cabin class
Find flights from Ontario to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Australia flights
Browse other Ontario and Australia flight options. Last updated on September 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Australia flights
Consider these flights traveling from Ontario to Australia.
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top airline flying from Ontario to Australia
Discover the top airline that operate flights from Ontario to Australia. 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 7,457,451 searches. Data last updated September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,049 | Average$1,111 | FlexibilityNo cancel fee | On-time69% |