AirHint found the following cheapest return flights from Monterrey (MTY) to Buenos Aires (AEP) in March 2026 (see full year).

Return flights

05 Mar - 12 Mar	Viva
02 Mar - 09 Mar	Viva
15 Mar - 22 Mar	Viva
13 Mar - 22 Mar	Viva
12 Mar - 19 Mar	Viva
28 Mar - 11 Apr	Viva
27 Mar - 10 Apr	Viva
23 Mar - 31 Mar	Viva
28 Mar - 05 Apr	Viva
22 Mar - 28 Mar	Viva
28 Mar - 04 Apr	Viva
29 Mar - 04 Apr	Viva
31 Mar - 05 Apr	Viva
15 Mar - 19 Mar	Viva
12 Mar - 31 Mar	Viva
15 Mar - 31 Mar	Viva
29 Mar - 19 Apr	Viva
15 Mar - 04 Apr	Viva
22 Mar - 04 Apr	Viva
22 Mar - 11 Apr	Viva

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

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 Monterrey to Buenos Aires in March from 664€

Return flights