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

Return flights

18 May - 24 May	Avianca
01 May - 08 May	Avianca
04 May - 11 May	Avianca
05 May - 17 May	Copa
19 May - 24 May	Copa
18 May - 26 May	Copa
05 May - 12 May	Copa
15 May - 26 May	Copa
13 May - 19 May	Copa
21 May - 25 May	Copa
29 May - 07 Jun	Avianca
16 May - 01 Jun	Viva
13 May - 01 Jun	Viva
18 May - 01 Jun	Viva
15 May - 01 Jun	Viva
18 May - 07 Jun	Viva
19 May - 01 Jun	Viva
19 May - 07 Jun	Viva
13 May - 02 Jun	Viva
16 May - 02 Jun	Viva

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

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 May from 665€

Return flights