AirHint found the following cheapest return flights from Toronto (YTZ) to Cancun (CUN) in October 2025 (see full year).

Return flights

26 Oct - 30 Oct	Air Transat
21 Oct - 26 Oct	Air Transat
22 Oct - 26 Oct	Air Transat
28 Oct - 01 Nov	Air Transat
05 Oct - 12 Oct	Air Transat
31 Oct - 04 Nov	Air Transat
06 Oct - 10 Oct	Air Transat
09 Oct - 14 Oct	Air Transat
11 Oct - 15 Oct	Air Transat
23 Oct - 26 Oct	Air Transat
13 Oct - 19 Oct	Air Transat
05 Oct - 19 Oct	Air Transat
02 Oct - 04 Nov	Air Transat

Also check the deals for one-way flights from Toronto to Cancun 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 Cancun in October from $351

Return flights