Cheapest return flights from Mexico City to Buenos Aires in October from $1125

Best time to book flights for Mexico City (MEX) to Buenos Aires (AEP) flights at AirHint

AirHint found the following cheapest return flights from Mexico City (MEX) to Buenos Aires (AEP) in October 2025 (see full year).

Return flights

23 Oct - 28 Oct Copa
18 Oct - 28 Oct LATAM Airlines Group
16 Oct - 27 Oct LATAM Airlines Group
01 Oct - 30 Oct LATAM Airlines Group
17 Oct - 24 Oct LATAM Airlines Group
04 Oct - 18 Oct LATAM Airlines Group
04 Oct - 15 Oct LATAM Airlines Group
01 Oct - 16 Oct LATAM Airlines Group
17 Oct - 23 Oct LATAM Airlines Group
14 Oct - 19 Oct LATAM Airlines Group
28 Oct - 01 Nov LATAM Airlines Group
21 Oct - 03 Nov Aeromexico
28 Oct - 15 Nov United

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

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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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