Cheapest return flights from Monterrey to Buenos Aires in December from $1196

AirHint found the following cheapest return flights from Monterrey (MTY) to Buenos Aires (AEP) in December 2025 (see full year).

Return flights

01 Dec - 10 Dec LATAM Airlines Group
24 Dec - 31 Dec LATAM Airlines Group
05 Dec - 10 Dec LATAM Airlines Group
10 Dec - 13 Dec LATAM Airlines Group
22 Dec - 29 Dec LATAM Airlines Group
25 Dec - 11 Jan LATAM Airlines Group
26 Dec - 15 Jan LATAM Airlines Group
27 Dec - 15 Jan LATAM Airlines Group
25 Dec - 04 Jan LATAM Airlines Group

Also check the deals for one-way flights from Monterrey to Buenos Aires in December.

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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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