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

Return flights

10 Dec - 30 Dec	Air Canada
08 Dec - 30 Dec	Air Canada
11 Dec - 06 Jan	British Airways
01 Dec - 28 Dec	Air Canada
23 Dec - 18 Jan	British Airways
24 Dec - 18 Jan	British Airways
28 Dec - 20 Jan	Air Canada
23 Dec - 13 Jan	SWISS
24 Dec - 12 Jan	Air Europa
23 Dec - 14 Jan	Iberia
24 Dec - 14 Jan	British Airways
25 Dec - 14 Jan	TAP
25 Dec - 01 Jan	TAP
10 Dec - 26 Dec	Lufthansa

Also check the deals for one-way flights from Sao Paulo to Brussels 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 Sao Paulo to Brussels in December from 703€

Return flights