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

Return flights

01 Dec - 07 Dec	Delta
04 Dec - 10 Dec	KLM
10 Dec - 25 Jan	Air Canada
01 Dec - 04 Dec	Lufthansa
04 Dec - 11 Dec	KLM
19 Dec - 12 Jan	Turkish Airlines
08 Dec - 21 Jan	Iberia
23 Dec - 29 Jan	Lufthansa
28 Dec - 16 Jan	Ethiopian Airlines
23 Dec - 30 Jan	Lufthansa
29 Dec - 13 Jan	Ethiopian Airlines
25 Dec - 13 Jan	Ethiopian Airlines
26 Dec - 12 Jan	Ethiopian Airlines
26 Dec - 13 Jan	Ethiopian Airlines
09 Dec - 17 Dec	TAP
09 Dec - 28 Dec	Delta
10 Dec - 30 Dec	Delta
16 Dec - 30 Dec	Ethiopian Airlines
10 Dec - 27 Dec	Brussels Airlines
05 Dec - 26 Dec	Lufthansa

Also check the deals for one-way flights from Brussels to Sao Paulo in December.

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 December from 630€

Return flights