Cheapest return flights from New York to Buenos Aires in January from $645

AirHint found the following cheapest return flights from New York (LGA) to Buenos Aires (AEP) in January 2026 (see full year).

Return flights

21 Jan - 01 Feb Spirit Airlines
13 Jan - 22 Jan Frontier Airlines
15 Jan - 27 Feb Frontier Airlines
21 Jan - 28 Jan Spirit Airlines
12 Jan - 19 Jan Spirit Airlines
18 Jan - 24 Jan Spirit Airlines
04 Jan - 15 Jan Spirit Airlines
12 Jan - 26 Jan Spirit Airlines
22 Jan - 28 Jan Spirit Airlines
24 Jan - 31 Jan Spirit Airlines
12 Jan - 02 Feb Spirit Airlines
12 Jan - 27 Jan Spirit Airlines
03 Jan - 23 Jan Spirit Airlines
29 Jan - 02 Feb Spirit Airlines
23 Jan - 02 Feb Spirit Airlines
19 Jan - 01 Feb Spirit Airlines
27 Jan - 11 Feb Frontier Airlines
11 Jan - 03 Feb Spirit Airlines

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

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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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