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

Return flights

08 Oct - 17 Oct	GOL Linhas Aéreas
21 Oct - 30 Oct	Arajet
29 Oct - 26 Nov	GOL Linhas Aéreas
03 Oct - 18 Oct	GOL Linhas Aéreas
30 Oct - 27 Nov	GOL Linhas Aéreas
04 Oct - 10 Oct	Avianca
01 Oct - 20 Oct	GOL Linhas Aéreas
16 Oct - 27 Oct	Avianca
15 Oct - 22 Oct	Avianca
17 Oct - 10 Nov	Avianca
31 Oct - 11 Nov	GOL Linhas Aéreas
08 Oct - 30 Nov	Avianca
10 Oct - 10 Nov	GOL Linhas Aéreas
16 Oct - 21 Oct	GOL Linhas Aéreas
17 Oct - 03 Nov	Avianca
02 Oct - 18 Oct	Avianca
11 Oct - 25 Oct	GOL Linhas Aéreas
17 Oct - 02 Nov	Avianca
18 Oct - 01 Nov	Arajet
10 Oct - 02 Nov	GOL Linhas Aéreas

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 457€

Return flights