Cheapest one-way flights from New York to Buenos Aires in September from 283€

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

One-Way flights

03 Sep Frontier Airlines
11 Sep Spirit Airlines
22 Sep Frontier Airlines
24 Sep Spirit Airlines
07 Sep Spirit Airlines
20 Sep United

Also check the deals for return 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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