Cheapest one-way flights from New York to Buenos Aires in March from $286

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

19 Mar Spirit Airlines
22 Mar Frontier Airlines
20 Mar Frontier Airlines
01 Mar Frontier Airlines
10 Mar Frontier Airlines
02 Mar Spirit Airlines
13 Mar Frontier Airlines
24 Mar Spirit Airlines
14 Mar Spirit Airlines
17 Mar LATAM Airlines Group

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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