AirHint found the following cheapest return flights from Rio De Janeiro (SDU) to Porto (OPO) in December 2025 (see full year).

Return flights

12 Dec - 09 Jan	LATAM Airlines Group
03 Dec - 06 Jan	LATAM Airlines Group
24 Dec - 13 Jan	LATAM Airlines Group
19 Dec - 02 Jan	LATAM Airlines Group
26 Dec - 06 Jan	LATAM Airlines Group
26 Dec - 02 Jan	LATAM Airlines Group

Also check the deals for one-way flights from Rio De Janeiro to Porto 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 Rio De Janeiro to Porto in December from 1000€

Return flights