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

Return flights

17 Oct - 24 Oct	WestJet
01 Oct - 22 Oct	Porter Airlines (Canada) Ltd
02 Oct - 19 Oct	WestJet
13 Oct - 22 Oct	Air New Zealand
26 Oct - 08 Nov	Air New Zealand
13 Oct - 19 Nov	Air New Zealand
26 Oct - 16 Nov	Air New Zealand
18 Oct - 01 Nov	Air New Zealand
23 Oct - 01 Nov	Air New Zealand
22 Oct - 30 Oct	Air New Zealand
23 Oct - 13 Nov	Air New Zealand
12 Oct - 25 Oct	Air New Zealand
31 Oct - 20 Nov	Air New Zealand
14 Oct - 21 Oct	Porter Airlines (Canada) Ltd
01 Oct - 29 Oct	Porter Airlines (Canada) Ltd
14 Oct - 23 Oct	Porter Airlines (Canada) Ltd
18 Oct - 26 Oct	Air Canada
16 Oct - 09 Nov	Air Canada
22 Oct - 06 Nov	China Southern

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

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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney

Cheapest return flights from Toronto to Sydney in October from $1016

Return flights