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

Return flights

25 Oct - 01 Nov	Frontier Airlines
21 Oct - 26 Oct	Frontier Airlines
13 Oct - 27 Oct	Spirit Airlines
01 Oct - 08 Oct	Spirit Airlines
14 Oct - 26 Oct	Frontier Airlines
21 Oct - 18 Nov	Frontier Airlines
30 Oct - 07 Nov	Avianca
12 Oct - 17 Oct	Arajet
29 Oct - 07 Nov	Avianca
27 Oct - 03 Nov	Avianca
10 Oct - 17 Oct	Avianca
17 Oct - 26 Oct	Spirit Airlines
03 Oct - 10 Oct	LATAM Airlines Group
12 Oct - 29 Oct	Avianca
10 Oct - 13 Oct	Avianca
29 Oct - 22 Nov	Avianca
11 Oct - 22 Nov	Frontier Airlines

Also check the deals for one-way flights from New York 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 New York to Buenos Aires in October from 641€

Return flights