AirHint found the following cheapest return flights from Toronto (YYZ) to Sydney (SYD) in August 2025 (see full year).

Return flights

30 Aug - 14 Sep	Porter Airlines (Canada) Ltd
30 Aug - 07 Sep	Porter Airlines (Canada) Ltd
22 Aug - 05 Sep	WestJet
20 Aug - 27 Aug	United
28 Aug - 11 Sep	Philippine Airlines
25 Aug - 29 Aug	United
21 Aug - 04 Sep	Philippine Airlines
21 Aug - 03 Sep	United
29 Aug - 01 Sep	WestJet
21 Aug - 28 Aug	United
23 Aug - 30 Aug	United
22 Aug - 30 Aug	United
22 Aug - 29 Aug	United
19 Aug - 06 Sep	Biman Bangladesh Airlines
20 Aug - 05 Sep	Turkish Airlines
22 Aug - 24 Aug	American Airlines
20 Aug - 01 Sep	Turkish Airlines

Also check the deals for one-way flights from Toronto to Sydney in August.

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 Toronto to Sydney in August from 1097€

Return flights