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

Return flights

01 Dec - 15 Dec	Porter Airlines (Canada) Ltd
08 Dec - 30 Dec	Porter Airlines (Canada) Ltd
12 Dec - 09 Jan	Porter Airlines (Canada) Ltd
23 Dec - 10 Jan	Porter Airlines (Canada) Ltd
12 Dec - 27 Dec	Porter Airlines (Canada) Ltd
02 Dec - 18 Dec	Emirates
02 Dec - 09 Dec	Emirates
01 Dec - 19 Dec	Emirates
24 Dec - 26 Dec	Porter Airlines (Canada) Ltd
02 Dec - 30 Jan	Emirates
03 Dec - 16 Dec	Emirates
10 Dec - 17 Dec	Emirates
08 Dec - 24 Dec	Emirates
09 Dec - 17 Jan	Emirates
09 Dec - 16 Jan	Emirates
17 Dec - 01 Jan	Porter Airlines (Canada) Ltd
13 Dec - 30 Jan	Emirates
12 Dec - 13 Jan	Emirates
09 Dec - 11 Jan	Emirates
18 Dec - 08 Jan	Porter Airlines (Canada) Ltd

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

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 December from $2014

Return flights