AirHint found the following cheapest return flights from New York (JFK) to Buenos Aires (EZE) in September 2025 (see full year).

Return flights

09 Sep - 19 Oct	Copa
12 Sep - 03 Oct	Avianca
08 Sep - 15 Sep	Avianca
14 Sep - 21 Sep	Avianca
10 Sep - 24 Sep	Avianca
28 Sep - 30 Sep	Avianca
16 Sep - 24 Sep	Avianca
15 Sep - 29 Sep	Avianca
01 Sep - 11 Sep	Avianca
16 Sep - 23 Sep	Avianca
02 Sep - 08 Sep	Avianca
16 Sep - 21 Oct	Avianca
24 Sep - 25 Oct	Avianca
06 Sep - 12 Sep	Avianca
29 Sep - 12 Oct	Avianca
28 Sep - 13 Oct	Avianca
15 Sep - 06 Oct	Avianca
26 Sep - 05 Oct	Frontier Airlines
18 Sep - 11 Oct	Avianca
24 Sep - 02 Oct	Copa

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

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires

Cheapest return flights from New York to Buenos Aires in September from 638€

Return flights