AirHint found the following cheapest return flights from Los Angeles (LAX) to Buenos Aires (EZE) in December 2025 (see full year).

Return flights

10 Dec - 15 Dec	LATAM Airlines Group
10 Dec - 13 Dec	LATAM Airlines Group
25 Dec - 30 Jan	Copa
03 Dec - 22 Dec	Copa
29 Dec - 12 Jan	Copa
12 Dec - 20 Dec	Copa
23 Dec - 31 Dec	Copa
27 Dec - 14 Jan	Copa
26 Dec - 30 Dec	LATAM Airlines Group
12 Dec - 28 Dec	LATAM Airlines Group
23 Dec - 01 Jan	Copa
22 Dec - 17 Jan	Copa
17 Dec - 29 Dec	Copa
18 Dec - 25 Dec	Copa
27 Dec - 08 Jan	Copa
28 Dec - 08 Jan	LATAM Airlines Group
22 Dec - 12 Jan	Copa
22 Dec - 05 Jan	Copa
15 Dec - 04 Jan	Copa
19 Dec - 30 Dec	LATAM Airlines Group

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to Buenos Aires in December from 643€

Return flights