AirHint found the following cheapest return flights from Ontario (ONT) to Sydney (SYD) in March 2026 (see full year).

Return flights

12 Mar - 19 Mar	Alaska Airlines
12 Mar - 15 Mar	China Airlines
15 Mar - 22 Mar	China Airlines
14 Mar - 20 Mar	China Airlines
13 Mar - 22 Mar	China Airlines
31 Mar - 23 Apr	China Airlines
14 Mar - 22 Mar	China Airlines
06 Mar - 27 Mar	China Airlines

Also check the deals for one-way flights from Ontario to Sydney in March.

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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Cheapest return flights from Ontario to Sydney in March from 877€

Return flights