Cheapest one-way flights from Ontario to Sydney in August from $616

Best time to book flights for Ontario (ONT) to Sydney (SYD) flights at AirHint

AirHint found the following cheapest one-way flights from Ontario (ONT) to Sydney (SYD) in August 2025 (see full year).

One-Way flights

23 Aug Alaska Airlines
14 Aug Hawaiian Airlines
01 Aug Alaska Airlines
26 Aug China Airlines
10 Aug Philippine Airlines
03 Aug Philippine Airlines
08 Aug China Airlines
06 Aug Japan Airlines
07 Aug Japan Airlines
21 Aug Japan Airlines

Also check the deals for return flights from Ontario to Sydney in August.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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