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

Return flights

01 Oct - 05 Oct	Arajet
10 Oct - 16 Oct	Avianca
07 Oct - 23 Oct	Avianca
06 Oct - 23 Oct	Avianca
03 Oct - 13 Oct	LATAM Airlines Group
01 Oct - 07 Oct	Avianca
01 Oct - 08 Oct	Arajet
09 Oct - 15 Oct	Arajet
11 Oct - 19 Oct	Arajet
11 Oct - 20 Oct	Arajet
10 Oct - 11 Nov	LATAM Airlines Group
24 Oct - 03 Nov	LATAM Airlines Group
06 Oct - 02 Nov	LATAM Airlines Group
14 Oct - 15 Nov	LATAM Airlines Group
26 Oct - 23 Nov	LATAM Airlines Group
31 Oct - 13 Nov	LATAM Airlines Group
25 Oct - 07 Nov	LATAM Airlines Group
26 Oct - 08 Nov	LATAM Airlines Group
25 Oct - 08 Nov	LATAM Airlines Group
24 Oct - 01 Nov	LATAM Airlines Group

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires

Cheapest return flights from Mexico City to Buenos Aires in October from 543€

Return flights