Cheapest return flights from New York to Buenos Aires in September from $773

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

Return flights

18 Sep - 01 Oct Spirit Airlines
24 Sep - 29 Sep Spirit Airlines
03 Sep - 12 Sep Spirit Airlines
06 Sep - 13 Sep Spirit Airlines
19 Sep - 29 Sep Spirit Airlines
03 Sep - 11 Sep Spirit Airlines
03 Sep - 24 Sep Spirit Airlines
08 Sep - 16 Sep Spirit Airlines
16 Sep - 24 Sep Spirit Airlines
04 Sep - 09 Sep Spirit Airlines
17 Sep - 23 Sep Spirit Airlines
18 Sep - 03 Oct Spirit Airlines
28 Sep - 03 Oct Spirit Airlines

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

Skyscanner

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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