AirHint found the following cheapest return flights from Los Angeles (LAX) to Rio Negro (MDE) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec	Copa
27 Dec - 30 Dec	United
07 Dec - 14 Jan	Copa
30 Dec - 05 Jan	Alaska Airlines
29 Dec - 12 Jan	Spirit Airlines
15 Dec - 28 Dec	Spirit Airlines
29 Dec - 05 Jan	Alaska Airlines
18 Dec - 07 Jan	Spirit Airlines
15 Dec - 05 Jan	Spirit Airlines
30 Dec - 04 Jan	Alaska Airlines
20 Dec - 08 Jan	Spirit Airlines
29 Dec - 08 Jan	Spirit Airlines
19 Dec - 12 Jan	Spirit Airlines
19 Dec - 28 Dec	Spirit Airlines
22 Dec - 28 Dec	Spirit Airlines

Also check the deals for one-way flights from Los Angeles to Rio Negro 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 Rio Negro in December from 425€

Return flights