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

Return flights

31 Oct - 03 Nov	WestJet
04 Oct - 15 Oct	WestJet	direct
04 Oct - 31 Oct	WestJet	direct
29 Oct - 03 Nov	WestJet	direct
04 Oct - 29 Oct	WestJet	direct
04 Oct - 01 Nov	WestJet	direct
25 Oct - 27 Oct	WestJet
25 Oct - 01 Nov	United
04 Oct - 21 Oct	WestJet	direct
27 Oct - 29 Oct	United
30 Oct - 06 Nov	WestJet	direct
31 Oct - 03 Nov	WestJet	direct
27 Oct - 05 Nov	United
27 Oct - 31 Oct	United
24 Oct - 26 Oct	WestJet
24 Oct - 28 Oct	WestJet
04 Oct - 17 Oct	WestJet	direct
30 Oct - 04 Nov	WestJet	direct
05 Oct - 01 Nov	WestJet	direct
16 Oct - 02 Nov	WestJet

Also check the deals for one-way flights from Calgary 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 Calgary to Cancun in October from $254

Return flights