AirHint found the following cheapest return flights from Mexico City (MEX) to Barcelona (BCN) in May 2026 (see full year).

Return flights

04 May - 11 May	Air Canada
05 May - 26 May	Air Canada
18 May - 25 May	Air Canada
11 May - 26 May	Air Canada
12 May - 26 May	Air Canada
06 May - 21 May	Air Canada
05 May - 20 May	Air Canada
17 May - 25 May	Air Canada
10 May - 19 May	Air Canada
04 May - 16 May	Air Canada
18 May - 01 Jun	Air Canada
20 May - 17 Jun	Air Canada
15 May - 01 Jun	Air Canada
13 May - 02 Jun	Aeromexico	direct
18 May - 01 Jun	Aeromexico	direct
27 May - 07 Jun	Air Canada
27 May - 12 Jun	Aer Lingus
24 May - 06 Jun	Iberia
27 May - 16 Jun	Lufthansa
15 May - 01 Jun	Aeromexico	direct

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

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Cheapest return flights from Mexico City to Barcelona in May from $717

Return flights