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

Return flights

07 May - 20 May	Arajet
19 May - 26 May	Avianca
18 May - 26 May	Arajet
15 May - 28 May	Avianca
06 May - 19 May	Arajet
17 May - 28 May	Avianca
09 May - 21 May	Avianca
01 May - 18 May	Avianca
01 May - 16 May	Avianca
22 May - 30 May	Avianca
20 May - 10 Jun	Arajet
22 May - 06 Jun	Avianca
23 May - 03 Jun	Aeromexico
30 May - 07 Jun	Avianca
29 May - 07 Jun	Avianca
26 May - 06 Jun	Aeromexico
26 May - 06 Jun	Aeromexico	direct
23 May - 03 Jun	Aeromexico	direct
22 May - 06 Jun	Aeromexico	direct
30 May - 07 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 $649

Return flights