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

Return flights

27 Oct - 11 Nov	Aeromexico
16 Oct - 11 Nov	Aeromexico
14 Oct - 04 Nov	Aeromexico
20 Oct - 13 Nov	Aeromexico
14 Oct - 13 Nov	Volaris
01 Oct - 15 Oct	Aeromexico
05 Oct - 16 Oct	Viva
15 Oct - 27 Oct	Viva
16 Oct - 27 Oct	Viva
29 Oct - 12 Nov	Volaris
12 Oct - 10 Nov	Iberia
29 Oct - 05 Nov	Volaris
02 Oct - 16 Oct	Viva
02 Oct - 07 Oct	Viva
19 Oct - 27 Oct	Viva
17 Oct - 01 Nov	Viva
16 Oct - 28 Oct	Viva
17 Oct - 27 Oct	Viva
17 Oct - 26 Oct	Viva
25 Oct - 08 Nov	Volaris

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 576€

Return flights