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

Return flights

04 Oct - 11 Oct	Icelandair
07 Oct - 12 Oct	WestJet
02 Oct - 08 Oct	Ryanair
07 Oct - 10 Oct	WestJet
27 Oct - 15 Nov	Iberia
05 Oct - 15 Oct	British Airways
06 Oct - 15 Oct	Aer Lingus
14 Oct - 28 Oct	British Airways
14 Oct - 24 Oct	British Airways
12 Oct - 19 Oct	British Airways
16 Oct - 23 Oct	Lufthansa
26 Oct - 07 Nov	British Airways
25 Oct - 07 Nov	British Airways
25 Oct - 09 Nov	British Airways
29 Oct - 08 Nov	United
24 Oct - 04 Nov	United
18 Oct - 03 Nov	United
25 Oct - 01 Nov	United
24 Oct - 15 Nov	United
23 Oct - 15 Nov	United

Also check the deals for one-way flights from Dublin 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 Dublin to Cancun in October from $752

Return flights