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	WestJet
26 Aug - 12 Sep	WestJet
26 Aug - 09 Sep	WestJet
30 Aug - 06 Sep	WestJet
28 Aug - 11 Sep	WestJet
22 Aug - 05 Sep	WestJet
20 Aug - 27 Aug	Porter Airlines (Canada) Ltd
21 Aug - 03 Sep	Porter Airlines (Canada) Ltd
22 Aug - 31 Aug	WestJet
25 Aug - 01 Sep	WestJet
18 Aug - 03 Sep	WestJet
18 Aug - 02 Sep	Air Canada
22 Aug - 30 Aug	WestJet
07 Aug - 23 Aug	WestJet
15 Aug - 31 Aug	WestJet
09 Aug - 29 Aug	China Eastern
07 Aug - 11 Aug	Porter Airlines (Canada) Ltd
23 Aug - 30 Aug	Porter Airlines (Canada) Ltd
04 Aug - 13 Aug	Cathay Pacific
12 Aug - 17 Aug	United

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 $897

Return flights