Cheapest return flights from New York to Buenos Aires in December from $834

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

Return flights

06 Dec - 13 Dec Spirit Airlines
12 Dec - 15 Dec Spirit Airlines
25 Dec - 18 Jan Frontier Airlines
16 Dec - 15 Jan Spirit Airlines
17 Dec - 08 Jan Spirit Airlines
02 Dec - 07 Dec Spirit Airlines
16 Dec - 08 Jan Spirit Airlines
24 Dec - 14 Jan Spirit Airlines
02 Dec - 06 Dec Spirit Airlines
26 Dec - 18 Jan Spirit Airlines
29 Dec - 12 Jan Spirit Airlines
27 Dec - 18 Jan Spirit Airlines
03 Dec - 10 Dec Spirit Airlines
11 Dec - 19 Dec Frontier Airlines
20 Dec - 18 Jan Frontier Airlines
04 Dec - 17 Dec Spirit Airlines
18 Dec - 20 Jan Spirit Airlines
06 Dec - 10 Dec Spirit Airlines
24 Dec - 31 Dec Spirit Airlines
12 Dec - 27 Dec Spirit Airlines

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

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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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