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

Return flights

31 Dec - 27 Jan	Avianca
09 Dec - 18 Dec	Avianca
31 Dec - 27 Jan	Delta	direct
05 Dec - 12 Dec	Avianca
28 Dec - 15 Jan	Avianca
09 Dec - 18 Dec	Delta	direct
12 Dec - 12 Jan	Avianca
31 Dec - 14 Jan	LATAM Airlines Group
11 Dec - 27 Dec	Delta	direct
29 Dec - 09 Jan	Avianca
12 Dec - 21 Dec	LATAM Airlines Group
28 Dec - 17 Jan	Avianca
31 Dec - 14 Jan	Delta	direct
27 Dec - 11 Jan	Avianca
19 Dec - 26 Dec	jetBlue
11 Dec - 15 Dec	Copa
27 Dec - 11 Jan	Delta	direct
17 Dec - 31 Dec	Avianca
10 Dec - 14 Dec	Copa
19 Dec - 30 Dec	Delta

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 693€

Return flights