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

Return flights

19 Jan - 03 Feb	Avianca
01 Jan - 05 Feb	Avianca
15 Jan - 19 Feb	Avianca
13 Jan - 03 Feb	Avianca
06 Jan - 27 Jan	LATAM Airlines Group
30 Jan - 27 Feb	Avianca
01 Jan - 31 Jan	LATAM Airlines Group
17 Jan - 29 Jan	Avianca
06 Jan - 29 Jan	Avianca
19 Jan - 31 Jan	Avianca
21 Jan - 02 Feb	LATAM Airlines Group
14 Jan - 27 Jan	LATAM Airlines Group
19 Jan - 27 Jan	LATAM Airlines Group
12 Jan - 24 Jan	Avianca
09 Jan - 22 Jan	Avianca
07 Jan - 31 Jan	Avianca
22 Jan - 03 Feb	Avianca
19 Jan - 02 Feb	LATAM Airlines Group
26 Jan - 03 Feb	Avianca
26 Jan - 02 Feb	LATAM Airlines Group

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

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 January from 573€

Return flights