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

Return flights

17 Aug - 05 Sep	Viva
19 Aug - 26 Aug	Finnair
25 Aug - 10 Sep	British Airways
12 Aug - 26 Aug	Finnair
11 Aug - 26 Aug	Finnair
11 Aug - 11 Sep	Iberia
11 Aug - 24 Sep	Iberia
04 Aug - 12 Sep	Iberia
25 Aug - 11 Sep	Iberia
19 Aug - 03 Sep	Viva
10 Aug - 26 Aug	Finnair
06 Aug - 26 Aug	Finnair
13 Aug - 26 Aug	Finnair
05 Aug - 03 Sep	Viva
18 Aug - 27 Aug	Finnair
20 Aug - 02 Sep	Finnair
11 Aug - 08 Sep	Volaris
20 Aug - 26 Aug	Finnair
19 Aug - 27 Aug	Finnair
18 Aug - 29 Aug	Aeromexico

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

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 August from 619€

Return flights