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

Return flights

03 Dec - 10 Dec	British Airways
01 Dec - 08 Dec	British Airways
02 Dec - 09 Dec	British Airways
23 Dec - 08 Jan	Vueling Airlines
01 Dec - 31 Dec	British Airways
22 Dec - 08 Jan	Air France
18 Dec - 09 Jan	Air Transat

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 $518

Return flights