AirHint found the following cheapest return flights from Tunis (TUN) to Sao Paulo (GRU) in September 2025 (see full year).

Return flights

15 Sep - 28 Sep	Air France
08 Sep - 30 Sep	Air France
07 Sep - 19 Sep	Air Europa
10 Sep - 25 Sep	Air France
19 Sep - 28 Sep	Air France
10 Sep - 20 Sep	Air France
25 Sep - 30 Sep	Air France
01 Sep - 12 Sep	Royal Air Maroc
03 Sep - 08 Sep	Qatar Airways
13 Sep - 19 Sep	Air France
29 Sep - 06 Oct	Air France

Also check the deals for one-way flights from Tunis 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 return flights from Tunis to Sao Paulo in September from $691

Return flights