Cheapest return flights from New York to Buenos Aires in March from 645€

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

Return flights

18 Mar - 22 Mar Frontier Airlines
13 Mar - 22 Mar Frontier Airlines
13 Mar - 23 Mar Frontier Airlines
02 Mar - 09 Mar Spirit Airlines
05 Mar - 12 Mar Frontier Airlines
01 Mar - 14 Mar Frontier Airlines
08 Mar - 14 Mar Frontier Airlines
10 Mar - 26 Mar Air Canada
14 Mar - 21 Mar Frontier Airlines
12 Mar - 20 Mar Frontier Airlines

Also check the deals for one-way 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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