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

Return flights

25 Sep - 02 Oct	Qatar Airways
15 Sep - 05 Oct	Ethiopian Airlines
30 Sep - 17 Oct	Ethiopian Airlines
28 Sep - 05 Oct	Qatar Airways
08 Sep - 08 Oct	Ethiopian Airlines
09 Sep - 22 Oct	Ethiopian Airlines
15 Sep - 30 Sep	Qatar Airways
08 Sep - 21 Sep	Ethiopian Airlines
08 Sep - 15 Sep	Ethiopian Airlines
09 Sep - 16 Sep	Avianca
13 Sep - 15 Oct	Copa
05 Sep - 05 Oct	Copa
12 Sep - 19 Sep	Air Europa

Also check the deals for one-way flights from Sao Paulo to Beirut 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 Beirut in September from $1076

Return flights