AirHint found the following cheapest return flights from Sao Paulo (GRU) to Porto (OPO) in August 2026 (see full year).

Return flights

18 Aug - 25 Aug	Iberia
08 Aug - 22 Aug	Iberia
11 Aug - 21 Aug	Iberia
05 Aug - 12 Aug	Iberia
06 Aug - 13 Aug	Iberia
15 Aug - 22 Aug	Iberia
04 Aug - 11 Aug	Iberia
03 Aug - 13 Aug	Iberia
01 Aug - 15 Aug	Iberia
11 Aug - 18 Aug	Iberia
03 Aug - 03 Sep	SWISS
24 Aug - 01 Sep	Air France
25 Aug - 01 Sep	Air France

Also check the deals for one-way flights from Sao Paulo to Porto in August.

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 Sao Paulo to Porto in August from 559€

Return flights