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

Return flights

01 Dec - 10 Dec	Air Europa
03 Dec - 09 Dec	Air Europa
04 Dec - 13 Dec	Iberia
01 Dec - 11 Dec	Iberia
01 Dec - 27 Jan	Iberia
02 Dec - 27 Jan	Iberia
01 Dec - 26 Jan	Air Europa
27 Dec - 23 Jan	Royal Air Maroc
06 Dec - 09 Dec	Air Europa
04 Dec - 24 Jan	Iberia
01 Dec - 14 Dec	TAP
05 Dec - 17 Dec	Air Europa
26 Dec - 23 Jan	Royal Air Maroc
05 Dec - 31 Jan	Iberia
02 Dec - 15 Dec	Air Europa
04 Dec - 16 Dec	Air Europa
03 Dec - 15 Dec	Air Europa
04 Dec - 22 Jan	Air Europa
08 Dec - 20 Jan	Air Europa
25 Dec - 27 Jan	TAP

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 598€

Return flights