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

Return flights

25 Sep - 15 Oct	Delta
30 Sep - 27 Oct	ITA Airways
30 Sep - 23 Oct	ITA Airways
23 Sep - 14 Oct	ITA Airways
24 Sep - 15 Oct	ITA Airways
28 Sep - 07 Oct	ITA Airways
22 Sep - 14 Oct	ITA Airways
22 Sep - 06 Oct	ITA Airways
20 Sep - 14 Oct	KLM
23 Sep - 30 Sep	Delta
23 Sep - 29 Sep	Delta
22 Sep - 05 Oct	Delta
21 Sep - 30 Sep	Delta
21 Sep - 28 Sep	Delta
22 Sep - 24 Sep	Delta
25 Sep - 28 Sep	Delta
22 Sep - 23 Sep	Delta
24 Sep - 29 Sep	Delta
23 Sep - 28 Sep	Delta
23 Sep - 26 Sep	Delta

Also check the deals for one-way flights from Barcelona 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 Barcelona to Sao Paulo in September from $718

Return flights