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

Return flights

09 Aug - 03 Sep	KLM
13 Aug - 20 Aug	LATAM Airlines Group
03 Aug - 29 Aug	Air France
11 Aug - 28 Aug	KLM
13 Aug - 04 Sep	KLM
08 Aug - 28 Aug	Air France
19 Aug - 02 Sep	Air France
19 Aug - 07 Sep	Air France
25 Aug - 04 Sep	Ethiopian Airlines
16 Aug - 26 Aug	Air France
21 Aug - 07 Sep	Air France
14 Aug - 02 Sep	KLM
21 Aug - 17 Sep	KLM
14 Aug - 16 Sep	KLM
11 Aug - 18 Aug	KLM
18 Aug - 28 Aug	Ethiopian Airlines
17 Aug - 26 Aug	Air France
07 Aug - 14 Aug	LATAM Airlines Group
12 Aug - 01 Sep	Air France
08 Aug - 29 Aug	Air France

Also check the deals for one-way flights from Sao Paulo to Istanbul 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 Istanbul in August from 779€

Return flights