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

Return flights

22 Oct - 07 Nov	Air Canada
21 Oct - 08 Nov	Air Canada
21 Oct - 09 Nov	Air Canada
22 Oct - 08 Nov	Air Canada
03 Oct - 05 Oct	United
04 Oct - 18 Oct	United
16 Oct - 20 Oct	United
22 Oct - 29 Oct	United
03 Oct - 12 Oct	United
03 Oct - 18 Oct	United
09 Oct - 30 Oct	United
01 Oct - 17 Oct	United
01 Oct - 20 Oct	United
08 Oct - 29 Oct	United
22 Oct - 10 Nov	United
22 Oct - 02 Nov	United
02 Oct - 15 Nov	United
22 Oct - 22 Nov	United
15 Oct - 25 Nov	United
03 Oct - 15 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 449€

Return flights