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

Return flights

20 Aug - 19 Sep	Iberia
14 Aug - 29 Aug	Iberia
07 Aug - 21 Aug	Iberia
10 Aug - 22 Sep	Iberia
09 Aug - 21 Sep	Iberia
11 Aug - 05 Sep	LATAM Airlines Group
08 Aug - 22 Aug	Iberia
08 Aug - 12 Aug	Air Europa
04 Aug - 03 Sep	TAP
03 Aug - 13 Aug	Iberia
01 Aug - 15 Aug	Iberia
01 Aug - 12 Sep	Iberia
15 Aug - 04 Sep	TAP
08 Aug - 22 Aug	TAP	direct
01 Aug - 12 Sep	TAP	direct

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 $760

Return flights