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

Return flights

27 Aug - 03 Sep	WestJet
26 Aug - 02 Sep	WestJet
11 Aug - 31 Aug	WestJet
15 Aug - 22 Aug	WestJet
12 Aug - 03 Sep	Porter Airlines (Canada) Ltd
08 Aug - 24 Aug	Alaska Airlines
06 Aug - 13 Aug	WestJet
04 Aug - 13 Aug	WestJet
09 Aug - 29 Aug	Porter Airlines (Canada) Ltd
10 Aug - 31 Aug	WestJet
05 Aug - 31 Aug	Porter Airlines (Canada) Ltd
08 Aug - 06 Sep	WestJet
01 Aug - 04 Aug	WestJet
03 Aug - 21 Aug	Porter Airlines (Canada) Ltd
27 Aug - 04 Sep	Porter Airlines (Canada) Ltd
26 Aug - 09 Sep	Air New Zealand
20 Aug - 15 Sep	Philippine Airlines
26 Aug - 16 Sep	Philippine Airlines
05 Aug - 27 Sep	Air New Zealand
27 Aug - 01 Sep	Qantas

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 $938

Return flights