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

Return flights

13 Sep - 20 Sep	United
12 Sep - 15 Sep	United
12 Sep - 16 Sep	United
05 Sep - 12 Sep	United
05 Sep - 22 Sep	United
05 Sep - 07 Sep	United
24 Sep - 30 Sep	United
09 Sep - 16 Sep	United
12 Sep - 19 Sep	WestJet
07 Sep - 13 Sep	Flair Airlines
28 Sep - 05 Oct	Flair Airlines	direct
24 Sep - 01 Oct	United
06 Sep - 28 Oct	Flair Airlines	direct
24 Sep - 01 Oct	WestJet	direct
21 Sep - 08 Oct	Flair Airlines
26 Sep - 10 Oct	Arajet
22 Sep - 10 Oct	Air Canada
26 Sep - 10 Oct	Air Transat	direct
22 Sep - 10 Oct	Air Transat	direct
21 Sep - 08 Oct	Air Transat	direct

Also check the deals for one-way flights from Cancun 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 Cancun to Toronto in September from 246€

Return flights