Cheapest one-way flights from New York to Buenos Aires in March from $266

AirHint found the following cheapest one-way flights from New York (LGA) to Buenos Aires (AEP) in March 2026 (see full year).

One-Way flights

05 Mar Frontier Airlines
23 Mar Spirit Airlines
24 Mar Spirit Airlines
15 Mar Spirit Airlines
19 Mar Frontier Airlines
14 Mar Frontier Airlines
20 Mar Frontier Airlines
25 Mar Frontier Airlines
03 Mar Spirit Airlines
18 Mar Spirit Airlines

Also check the deals for return flights from New York to Buenos Aires in March.

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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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