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

Return flights

01 Dec - 08 Dec	Avianca
31 Dec - 27 Jan	Avianca
05 Dec - 12 Dec	Avianca
07 Dec - 14 Dec	Avianca
04 Dec - 12 Dec	LATAM Airlines Group
28 Dec - 15 Jan	Avianca
03 Dec - 10 Dec	LATAM Airlines Group
12 Dec - 21 Dec	LATAM Airlines Group
09 Dec - 18 Dec	LATAM Airlines Group
12 Dec - 24 Dec	Avianca
12 Dec - 19 Dec	LATAM Airlines Group
10 Dec - 20 Dec	Avianca
31 Dec - 14 Jan	LATAM Airlines Group
10 Dec - 02 Jan	Avianca
27 Dec - 11 Jan	Avianca
25 Dec - 02 Jan	Avianca
17 Dec - 02 Jan	Avianca
12 Dec - 12 Jan	Avianca
28 Dec - 02 Jan	Avianca
29 Dec - 05 Jan	Avianca

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