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

Return flights

14 Oct - 21 Oct	Air Canada
07 Oct - 14 Oct	Air Canada
04 Oct - 11 Oct	Air Canada
22 Oct - 27 Oct	United
23 Oct - 27 Oct	United
23 Oct - 28 Oct	United
13 Oct - 10 Nov	United
23 Oct - 13 Nov	United
02 Oct - 06 Oct	United
07 Oct - 18 Oct	United
07 Oct - 19 Oct	United
02 Oct - 18 Oct	United
31 Oct - 15 Nov	United
01 Oct - 17 Nov	United
31 Oct - 09 Nov	United
02 Oct - 15 Nov	United
23 Oct - 14 Nov	United
04 Oct - 14 Nov	United
04 Oct - 15 Nov	United
31 Oct - 08 Nov	United

Also check the deals for one-way flights from Barcelona to Mexico City 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 Barcelona to Mexico City in October from $537

Return flights