AirHint found the following cheapest return flights from New York (NYC) to Buenos Aires (EZE) in December 2025 (see full year).

Return flights

09 Dec - 16 Dec	Frontier Airlines
10 Dec - 15 Dec	Spirit Airlines
08 Dec - 16 Dec	Avianca
06 Dec - 10 Dec	Spirit Airlines
09 Dec - 16 Dec	Delta	direct
11 Dec - 16 Dec	Delta
11 Dec - 24 Dec	United
06 Dec - 15 Dec	Frontier Airlines
14 Dec - 24 Dec	Delta	direct
10 Dec - 20 Jan	Frontier Airlines
11 Dec - 14 Dec	Delta
30 Dec - 24 Jan	Delta	direct
28 Dec - 17 Jan	Spirit Airlines
15 Dec - 09 Jan	Spirit Airlines
15 Dec - 13 Jan	United
26 Dec - 23 Jan	Spirit Airlines
27 Dec - 18 Jan	Spirit Airlines
15 Dec - 12 Jan	Frontier Airlines
30 Dec - 12 Jan	Arajet
18 Dec - 02 Jan	Copa

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

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 December from 558€

Return flights