AirHint found the following cheapest return flights from Mexico City (MEX) to Buenos Aires (EZE) in October 2025 (see full year).

Return flights

26 Oct - 28 Oct	LATAM Airlines Group
31 Oct - 02 Nov	LATAM Airlines Group
26 Oct - 09 Nov	Avianca
30 Oct - 02 Nov	Arajet
30 Oct - 05 Nov	Avianca
29 Oct - 05 Nov	Avianca
28 Oct - 04 Nov	Avianca
30 Oct - 28 Nov	Avianca
30 Oct - 07 Nov	Avianca
28 Oct - 30 Oct	LATAM Airlines Group
07 Oct - 20 Oct	Arajet
20 Oct - 02 Nov	Volaris Costa Rica
01 Oct - 15 Oct	Avianca
28 Oct - 10 Nov	Avianca
25 Oct - 29 Oct	Volaris
02 Oct - 08 Oct	Avianca
27 Oct - 31 Oct	Avianca
20 Oct - 30 Oct	Volaris
14 Oct - 26 Oct	Volaris
14 Oct - 21 Oct	Volaris

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

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 October from $582

Return flights