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

Return flights

08 Sep - 19 Sep	Volaris
18 Sep - 25 Sep	Air Canada
15 Sep - 24 Sep	Iberia
08 Sep - 23 Sep	Iberia
08 Sep - 30 Sep	British Airways
23 Sep - 15 Oct	Delta
17 Sep - 21 Sep	Viva
01 Sep - 10 Sep	Air Canada
03 Sep - 21 Sep	Iberia
09 Sep - 01 Oct	Air France
04 Sep - 16 Sep	Air Canada
14 Sep - 05 Oct	United
15 Sep - 17 Oct	United
12 Sep - 26 Sep	Air Canada
12 Sep - 03 Oct	United

Also check the deals for one-way flights from Mexico City to Brussels in September.

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 September from 764€

Return flights