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

Return flights

26 Aug - 27 Sep	Air Europa
25 Aug - 26 Sep	Air Europa
31 Aug - 22 Sep	Air Europa
28 Aug - 24 Sep	Air Europa
27 Aug - 27 Sep	Air Europa
31 Aug - 23 Sep	Air Europa
31 Aug - 30 Sep	Air Europa
23 Aug - 16 Sep	Air Europa
31 Aug - 21 Sep	Air Europa
26 Aug - 16 Sep	Air Europa
12 Aug - 23 Aug	Turkish Airlines
13 Aug - 22 Aug	Turkish Airlines
15 Aug - 22 Aug	Royal Air Maroc
18 Aug - 22 Aug	Ryanair
19 Aug - 26 Aug	Ryanair
07 Aug - 12 Aug	Ryanair
13 Aug - 20 Aug	Ryanair
11 Aug - 18 Aug	Ryanair
24 Aug - 31 Aug	Air Europa
12 Aug - 19 Aug	Ryanair

Also check the deals for one-way flights from Porto to Sao Paulo 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 Porto to Sao Paulo in August from 622€

Return flights