AirHint found the following cheapest return flights from Mexico City (MEX) to Brussels (BRU) in December 2025 (see full year).

Return flights

08 Dec - 14 Jan	Aeromexico
09 Dec - 14 Jan	Aeromexico
10 Dec - 14 Jan	Viva
11 Dec - 14 Jan	Viva
13 Dec - 14 Jan	Viva
24 Dec - 13 Jan	British Airways
12 Dec - 14 Jan	Viva
12 Dec - 14 Dec	Viva
26 Dec - 16 Jan	British Airways
15 Dec - 12 Jan	British Airways
02 Dec - 09 Dec	Lufthansa
27 Dec - 11 Jan	British Airways
16 Dec - 29 Dec	Virgin Atlantic
12 Dec - 25 Dec	British Airways
19 Dec - 30 Dec	British Airways
18 Dec - 31 Dec	Iberia
19 Dec - 31 Dec	Volaris
22 Dec - 27 Dec	Iberia
15 Dec - 20 Dec	Viva
20 Dec - 27 Dec	Viva

Also check the deals for one-way flights from Mexico City 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 Mexico City to Brussels in December from $801

Return flights