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

Return flights

10 Dec - 18 Jan	Air Canada
02 Dec - 02 Dec	TAP
02 Dec - 14 Jan	Lufthansa
07 Dec - 12 Jan	Lufthansa
01 Dec - 12 Jan	Air Canada
10 Dec - 17 Jan	Air Canada
18 Dec - 19 Jan	Air Canada
16 Dec - 06 Jan	Royal Air Maroc
12 Dec - 18 Jan	Air Canada
25 Dec - 08 Jan	Delta
16 Dec - 13 Jan	Royal Air Maroc
15 Dec - 27 Dec	Air Canada
20 Dec - 30 Dec	Royal Air Maroc
16 Dec - 22 Dec	Delta
15 Dec - 21 Dec	Delta

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 688€

Return flights