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

Return flights

05 Dec - 16 Jan	LATAM Airlines Group
03 Dec - 23 Jan	LATAM Airlines Group
01 Dec - 20 Jan	Lufthansa
10 Dec - 20 Jan	Lufthansa
10 Dec - 31 Dec	Lufthansa
03 Dec - 31 Dec	Lufthansa
10 Dec - 21 Jan	Lufthansa
05 Dec - 22 Jan	Lufthansa
10 Dec - 18 Jan	Lufthansa
04 Dec - 11 Dec	Lufthansa
01 Dec - 08 Dec	TAP
10 Dec - 25 Jan	Lufthansa
15 Dec - 20 Jan	Lufthansa
08 Dec - 19 Jan	GOL Linhas Aéreas
04 Dec - 09 Dec	GOL Linhas Aéreas
15 Dec - 24 Dec	Lufthansa
03 Dec - 11 Dec	GOL Linhas Aéreas
11 Dec - 23 Dec	Lufthansa
15 Dec - 23 Dec	Lufthansa
01 Dec - 12 Dec	Lufthansa

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 669€

Return flights