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

Return flights

13 May - 19 May	Volaris
12 May - 19 May	Volaris
02 May - 11 May	Volaris
18 May - 25 May	Volaris
17 May - 23 May	Volaris
19 May - 28 May	Volaris
16 May - 21 May	Volaris
06 May - 14 May	Volaris
06 May - 19 May	Volaris
19 May - 26 May	Volaris
25 May - 01 Jun	Volaris
31 May - 17 Jun	Avianca
29 May - 11 Jun	Volaris
25 May - 10 Jun	Volaris
27 May - 04 Jun	LATAM Airlines Group
31 May - 07 Jun	Arajet
29 May - 05 Jun	Volaris
28 May - 05 Jun	Aeromexico
08 May - 10 Jun	Volaris
25 May - 05 Jun	Avianca

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 461€

Return flights