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

Return flights

02 Dec - 09 Dec	Air Europa
04 Dec - 11 Dec	Air Europa
01 Dec - 29 Jan	Air Europa
31 Dec - 25 Jan	Air Europa
26 Dec - 30 Jan	Royal Air Maroc
03 Dec - 31 Jan	Air Europa
01 Dec - 14 Dec	Air Europa
02 Dec - 22 Jan	Air Europa
04 Dec - 24 Jan	Air Europa
24 Dec - 25 Jan	Air Europa
26 Dec - 23 Jan	Royal Air Maroc
11 Dec - 25 Jan	Royal Air Maroc
04 Dec - 11 Dec	TAP	direct
03 Dec - 15 Dec	Lufthansa
03 Dec - 21 Dec	Air Europa
24 Dec - 24 Jan	Air Europa
05 Dec - 25 Dec	Air Europa
02 Dec - 27 Dec	Air Europa
01 Dec - 20 Dec	Air Europa
24 Dec - 31 Dec	Air Europa

Also check the deals for one-way flights from Porto to Sao Paulo 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 Sao Paulo in December from $674

Return flights