Cheapest return flights from New York to Buenos Aires in December from $639

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

Return flights

07 Dec - 14 Dec Frontier Airlines
02 Dec - 05 Dec Frontier Airlines
07 Dec - 13 Dec Frontier Airlines
06 Dec - 13 Dec Frontier Airlines
02 Dec - 16 Dec Frontier Airlines
07 Dec - 08 Dec Frontier Airlines
03 Dec - 05 Dec Avianca
06 Dec - 17 Dec Frontier Airlines
01 Dec - 15 Dec Avianca
09 Dec - 16 Dec Avianca
29 Dec - 29 Jan Frontier Airlines
29 Dec - 28 Jan Frontier Airlines
12 Dec - 09 Jan Frontier Airlines
15 Dec - 09 Jan Frontier Airlines
30 Dec - 12 Jan LATAM Airlines Group
30 Dec - 17 Jan LATAM Airlines Group
13 Dec - 13 Jan LATAM Airlines Group
26 Dec - 10 Jan Avianca
15 Dec - 07 Jan Frontier Airlines
14 Dec - 09 Jan LATAM Airlines Group

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

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