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

Return flights

06 May - 27 May	Volaris
11 May - 26 May	Arajet
20 May - 27 May	Arajet
06 May - 19 May	Arajet
06 May - 16 May	Arajet
10 May - 18 May	Avianca
14 May - 21 May	LATAM Airlines Group
01 May - 08 May	Aeromexico
08 May - 23 May	Avianca
04 May - 13 May	LATAM Airlines Group
25 May - 11 Jun	Avianca
30 May - 01 Jun	Copa
31 May - 21 Jun	Avianca
25 May - 11 Jun	Aeromexico	direct
31 May - 21 Jun	Aeromexico	direct
30 May - 01 Jun	Aeromexico	direct

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 $690

Return flights