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

Return flights

03 Oct - 05 Oct	LATAM Airlines Group
25 Oct - 07 Nov	Volaris Costa Rica
27 Oct - 07 Nov	Sky Airline
07 Oct - 28 Oct	Arajet
14 Oct - 30 Oct	Arajet
27 Oct - 31 Oct	Sky Airline
14 Oct - 24 Oct	Arajet
01 Oct - 28 Oct	Sky Airline
18 Oct - 28 Oct	Arajet
16 Oct - 26 Oct	Arajet
28 Oct - 12 Nov	Sky Airline
22 Oct - 27 Oct	Sky Airline
10 Oct - 13 Oct	Sky Airline
23 Oct - 26 Nov	Sky Airline
22 Oct - 05 Nov	Sky Airline
21 Oct - 05 Nov	Sky Airline
31 Oct - 05 Nov	Sky Airline
27 Oct - 03 Nov	Sky Airline
16 Oct - 03 Nov	Arajet
18 Oct - 15 Nov	Arajet

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

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 Miami to Buenos Aires in October from $614

Return flights