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

Return flights

11 Sep - 28 Sep	TAP
09 Sep - 30 Sep	TAP
09 Sep - 09 Oct	TAP
11 Sep - 09 Oct	TAP
10 Sep - 24 Sep	TAP
10 Sep - 25 Sep	TAP
12 Sep - 28 Sep	Delta
03 Sep - 22 Sep	Delta
05 Sep - 12 Sep	Delta
18 Sep - 26 Sep	Delta
12 Sep - 24 Sep	Delta
05 Sep - 18 Sep	Delta
26 Sep - 08 Oct	Delta
27 Sep - 18 Oct	Delta
19 Sep - 02 Oct	Delta
12 Sep - 03 Oct	Delta
17 Sep - 04 Oct	Delta
12 Sep - 04 Oct	Delta
24 Sep - 01 Oct	Delta
16 Sep - 01 Oct	TAP

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 569€

Return flights