AirHint found the following cheapest return flights from Mexico City (MEX) to Barcelona (BCN) in October 2025 (see full year).

Return flights

17 Oct - 31 Oct	Aeromexico
20 Oct - 31 Oct	Aeromexico
14 Oct - 06 Nov	British Airways
27 Oct - 03 Nov	Iberia
03 Oct - 09 Oct	Volaris
08 Oct - 15 Oct	Iberia
04 Oct - 14 Oct	British Airways
29 Oct - 01 Nov	Mexicana
30 Oct - 09 Nov	Iberia
03 Oct - 15 Oct	British Airways
02 Oct - 16 Oct	British Airways
24 Oct - 26 Nov	British Airways
01 Oct - 19 Oct	Viva
08 Oct - 13 Oct	British Airways
03 Oct - 08 Oct	Iberia
05 Oct - 06 Nov	Air France
15 Oct - 06 Nov	Air France
16 Oct - 06 Nov	Air France
15 Oct - 06 Nov	Emirates	direct
16 Oct - 06 Nov	Emirates	direct

Also check the deals for one-way flights from Mexico City to Barcelona in October.

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 Barcelona in October from 608€

Return flights