Cheapest return flights from Monterrey to Buenos Aires in September from $883

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

Return flights

14 Sep - 21 Sep Avianca
20 Sep - 05 Oct Avianca
17 Sep - 22 Sep Aeromexico
29 Sep - 07 Oct Aeromexico
20 Sep - 22 Sep Viva
12 Sep - 22 Sep Viva
20 Sep - 03 Oct Viva
20 Sep - 11 Oct Viva
12 Sep - 03 Oct Viva
29 Sep - 03 Oct Viva
29 Sep - 11 Oct Viva
17 Sep - 03 Oct Viva
29 Sep - 18 Oct Viva

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

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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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