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

Return flights

01 Dec - 13 Dec	SWISS
08 Dec - 15 Dec	SWISS
01 Dec - 14 Dec	Air Europa
05 Dec - 14 Dec	British Airways
14 Dec - 30 Dec	British Airways
06 Dec - 13 Dec	British Airways
06 Dec - 14 Dec	British Airways
26 Dec - 04 Jan	Turkish Airlines
26 Dec - 30 Dec	SWISS
23 Dec - 30 Dec	TAP
14 Dec - 20 Dec	KLM
27 Dec - 10 Jan	TAP
19 Dec - 03 Jan	Iberia
27 Dec - 03 Jan	TAP
24 Dec - 03 Jan	TAP
20 Dec - 03 Jan	TAP
24 Dec - 04 Jan	British Airways
26 Dec - 03 Jan	TAP

Also check the deals for one-way flights from Porto to Cancun in December.

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 December from 439€

Return flights