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

Return flights

07 Aug - 21 Aug	Azul Airlines
01 Aug - 31 Aug	Azul Airlines
02 Aug - 18 Aug	Air Europa
09 Aug - 16 Aug	Air Europa
12 Aug - 23 Aug	Air Europa
11 Aug - 17 Aug	Air Europa
05 Aug - 12 Aug	GOL Linhas Aéreas
05 Aug - 06 Sep	Air Europa
02 Aug - 01 Sep	TAP
23 Aug - 02 Sep	Air France
04 Aug - 18 Aug	Air Europa
06 Aug - 30 Sep	Azul Airlines
01 Aug - 01 Sep	LATAM Airlines Group
24 Aug - 30 Aug	LATAM Airlines Group
28 Aug - 31 Aug	LATAM Airlines Group

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 742€

Return flights