AirHint found the following cheapest return flights from Sao Paulo (CGH) to Istanbul (IST) in September 2026 (see full year).

Return flights

16 Sep - 28 Sep	Air Europa
25 Sep - 12 Oct	Air Europa
18 Sep - 25 Sep	Air Europa
30 Sep - 30 Oct	Air Europa
25 Sep - 08 Oct	Air Europa
05 Sep - 08 Sep	Air Europa
30 Sep - 07 Oct	Air Europa
08 Sep - 15 Sep	Air Europa
08 Sep - 18 Sep	Air Europa
08 Sep - 21 Sep	Air Europa
26 Sep - 07 Oct	Air Europa
04 Sep - 20 Sep	KLM
07 Sep - 17 Sep	KLM
02 Sep - 16 Sep	Air Europa
01 Sep - 09 Sep	Air Europa

Also check the deals for one-way flights from Sao Paulo to Istanbul 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 return flights from Sao Paulo to Istanbul in September from 924€

Return flights