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

Return flights

04 May - 12 May	Arajet
20 May - 27 May	Arajet
07 May - 16 May	Arajet
06 May - 19 May	Arajet
06 May - 16 May	Arajet
05 May - 12 May	LATAM Airlines Group
07 May - 15 May	Avianca
08 May - 30 May	Avianca
24 May - 31 May	Avianca
23 May - 31 May	Avianca
22 May - 01 Jun	Avianca
26 May - 02 Jun	Avianca
22 May - 02 Jun	Avianca
28 May - 14 Jun	LATAM Airlines Group
29 May - 07 Jun	LATAM Airlines Group

Also check the deals for one-way flights from Mexico City to Buenos Aires 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.

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Cheapest return flights from Mexico City to Buenos Aires in May from 645€

Return flights