AirHint found the following cheapest one-way flights from Istanbul (IST) to Sao Paulo (GRU) in September 2025 (see full year).

One-Way flights

16 Sep	Wizz Air UK
18 Sep	Wizz Air UK
03 Sep	Wizz Air
02 Sep	Wizz Air
28 Sep	Royal Air Maroc
24 Sep	Royal Air Maroc
23 Sep	Pegasus Airlines
14 Sep	Pegasus Airlines
04 Sep	Wizz Air
10 Sep	Royal Air Maroc

Also check the deals for return flights from Istanbul to Sao Paulo in September.

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 one-way flights from Istanbul to Sao Paulo in September from $450

One-Way flights