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

Return flights

20 Oct - 07 Nov	Porter Airlines (Canada) Ltd
26 Oct - 04 Nov	Alaska Airlines
27 Oct - 03 Nov	Porter Airlines (Canada) Ltd
14 Oct - 28 Oct	Porter Airlines (Canada) Ltd
11 Oct - 15 Nov	Air Transat
06 Oct - 10 Oct	WestJet
03 Oct - 24 Nov	WestJet
30 Oct - 03 Nov	Cathay Pacific
31 Oct - 07 Nov	Cathay Pacific
13 Oct - 18 Oct	Cathay Pacific

Also check the deals for one-way flights from Toronto to Perth 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.

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Cheapest return flights from Toronto to Perth in October from $1244

Return flights