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

Return flights

10 Dec - 10 Jan	Volaris
10 Dec - 21 Jan	Iberia
03 Dec - 21 Jan	Iberia
04 Dec - 11 Dec	Volaris
11 Dec - 24 Dec	Iberia
10 Dec - 23 Dec	British Airways
10 Dec - 29 Dec	Volaris
16 Dec - 22 Dec	Iberia
14 Dec - 26 Dec	British Airways
15 Dec - 26 Dec	British Airways
29 Dec - 05 Jan	Iberia
12 Dec - 26 Dec	British Airways
17 Dec - 26 Dec	British Airways
19 Dec - 04 Jan	British Airways
19 Dec - 26 Dec	British Airways
17 Dec - 06 Jan	British Airways
26 Dec - 02 Jan	British Airways
14 Dec - 05 Jan	Air Canada
16 Dec - 01 Jan	United
20 Dec - 03 Jan	British Airways

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 723€

Return flights