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

Return flights

29 Sep - 07 Oct	Delta
29 Sep - 06 Oct	Delta
29 Sep - 22 Oct	Delta
29 Sep - 23 Oct	Delta
19 Sep - 29 Sep	Delta
22 Sep - 29 Sep	Delta
30 Sep - 22 Oct	Delta
26 Sep - 19 Oct	Delta
30 Sep - 07 Oct	Delta
23 Sep - 27 Sep	Ethiopian Airlines
21 Sep - 12 Oct	Delta
23 Sep - 30 Sep	Delta
23 Sep - 03 Oct	Delta
21 Sep - 22 Sep	Delta
28 Sep - 07 Oct	Delta
21 Sep - 30 Sep	Ryanair
21 Sep - 29 Sep	Lufthansa

Also check the deals for one-way flights from Brussels 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 Brussels to Sao Paulo in September from 630€

Return flights