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

Return flights

24 Sep - 08 Oct	WestJet	direct
30 Sep - 27 Oct	WestJet	direct
30 Sep - 08 Oct	WestJet	direct
24 Sep - 04 Oct	WestJet	direct
05 Sep - 10 Sep	United
06 Sep - 10 Sep	United
07 Sep - 10 Sep	United
09 Sep - 16 Sep	WestJet
07 Sep - 10 Sep	WestJet	direct
30 Sep - 14 Oct	WestJet
10 Sep - 16 Sep	WestJet
06 Sep - 13 Sep	United
29 Sep - 04 Oct	WestJet
20 Sep - 23 Sep	WestJet
18 Sep - 23 Sep	WestJet
22 Sep - 27 Sep	WestJet
27 Sep - 04 Oct	WestJet
27 Sep - 13 Oct	WestJet
26 Sep - 02 Oct	WestJet
24 Sep - 06 Oct	United

Also check the deals for one-way flights from Calgary to Cancun 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 Calgary to Cancun in September from $263

Return flights