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

Return flights

06 Dec - 11 Dec	Spirit Airlines
06 Dec - 12 Dec	Spirit Airlines
06 Dec - 10 Dec	Spirit Airlines
03 Dec - 17 Dec	Spirit Airlines
06 Dec - 09 Dec	Spirit Airlines
06 Dec - 13 Dec	Spirit Airlines
06 Dec - 16 Dec	Spirit Airlines
06 Dec - 17 Dec	Spirit Airlines
06 Dec - 15 Dec	Spirit Airlines
01 Dec - 17 Dec	Spirit Airlines
03 Dec - 15 Jan	Copa
17 Dec - 22 Jan	United
29 Dec - 12 Jan	Aeromexico
29 Dec - 08 Jan	Aeromexico
29 Dec - 01 Jan	United
23 Dec - 01 Jan	Frontier Airlines
30 Dec - 08 Jan	Spirit Airlines
25 Dec - 16 Jan	Copa
25 Dec - 12 Jan	Spirit Airlines
30 Dec - 16 Jan	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 341€

Return flights