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

Return flights

30 Oct - 15 Nov	United
28 Oct - 04 Nov	United
03 Oct - 05 Oct	Air Europa
03 Oct - 12 Oct	Air Europa
07 Oct - 14 Oct	Air Europa
06 Oct - 14 Oct	Air Europa
30 Oct - 06 Nov	TAP
01 Oct - 08 Oct	Air Transat
05 Oct - 12 Oct	Air Europa
22 Oct - 29 Oct	KLM
06 Oct - 13 Oct	United
19 Oct - 26 Oct	United
22 Oct - 01 Nov	SWISS
25 Oct - 01 Nov	United

Also check the deals for one-way flights from Porto 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 Porto to Cancun in October from 546€

Return flights