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

Return flights

07 Apr - 14 Apr	Spirit Airlines
10 Apr - 13 Apr	Spirit Airlines
24 Apr - 30 Apr	Spirit Airlines
07 Apr - 12 Apr	Spirit Airlines
11 Apr - 18 Apr	Frontier Airlines
28 Apr - 04 May	Spirit Airlines
01 Apr - 08 Apr	Spirit Airlines
07 Apr - 18 Apr	Frontier Airlines
29 Apr - 04 May	Spirit Airlines
01 Apr - 12 Apr	Spirit Airlines
23 Apr - 03 May	Spirit Airlines
19 Apr - 27 Apr	Frontier Airlines
12 Apr - 17 Apr	Avianca

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

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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Cheapest return flights from New York to Buenos Aires in April from $635

Return flights