AirHint found the following cheapest return flights from Guangzhou (CAN) to Toronto (YYZ) in September 2025 (see full year).

Return flights

28 Sep - 25 Oct	Cathay Pacific
20 Sep - 29 Sep	Cathay Pacific
27 Sep - 24 Oct	Cathay Pacific
27 Sep - 01 Oct	Cathay Pacific
30 Sep - 17 Oct	Cathay Pacific
27 Sep - 06 Oct	Cathay Pacific
27 Sep - 24 Oct	China Southern	direct
21 Sep - 28 Sep	China Southern	direct
30 Sep - 09 Oct	China Southern
27 Sep - 01 Oct	China Southern	direct
30 Sep - 10 Oct	China Southern
20 Sep - 29 Sep	China Southern	direct

Also check the deals for one-way flights from Guangzhou to Toronto in September.

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 Guangzhou to Toronto in September from $1006

Return flights