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

Return flights

07 Dec - 14 Jan	Copa
01 Dec - 05 Dec	Avianca
16 Dec - 30 Dec	Spirit Airlines
25 Dec - 09 Jan	American Airlines
28 Dec - 07 Jan	Avianca
29 Dec - 05 Jan	Avianca
26 Dec - 04 Jan	Avianca
20 Dec - 10 Jan	Spirit Airlines
22 Dec - 03 Jan	Alaska Airlines
21 Dec - 03 Jan	Alaska Airlines
15 Dec - 04 Jan	Spirit Airlines
26 Dec - 08 Jan	Spirit Airlines
15 Dec - 28 Dec	Spirit Airlines
15 Dec - 25 Dec	Spirit Airlines
15 Dec - 19 Dec	Spirit Airlines
26 Dec - 28 Dec	Spirit Airlines
01 Dec - 14 Dec	Spirit Airlines
01 Dec - 19 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 $537

Return flights