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

One-Way flights

02 Dec	Iberia
01 Dec	Iberia
04 Dec	Iberia
03 Dec	Iberia
09 Dec	GOL Linhas Aéreas
08 Dec	GOL Linhas Aéreas
11 Dec	LATAM Airlines Group
06 Dec	LATAM Airlines Group
16 Dec	Royal Air Maroc
04 Dec	TAP	direct

Also check the deals for return flights from Sao Paulo 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.

Book a cheap hotel in Porto

Cheap car rent in Porto

Cheapest one-way flights from Sao Paulo to Porto in December from $380

One-Way flights