AirHint found the following cheapest return flights from San Juan (SJU) to Rio Negro (MDE) in December 2025 (see full year).

Return flights

01 Dec - 06 Dec	Copa
10 Dec - 18 Dec	Copa
15 Dec - 15 Jan	Copa
10 Dec - 08 Jan	Copa
31 Dec - 07 Jan	Copa
03 Dec - 12 Dec	Copa
05 Dec - 11 Dec	Avianca	direct
10 Dec - 11 Jan	Copa
10 Dec - 08 Jan	Avianca	direct
30 Dec - 03 Jan	Copa
02 Dec - 06 Dec	jetBlue	direct
01 Dec - 06 Dec	jetBlue	direct
26 Dec - 06 Jan	Copa
29 Dec - 26 Jan	Copa
28 Dec - 04 Jan	Copa
03 Dec - 07 Dec	jetBlue	direct
05 Dec - 06 Dec	Spirit Airlines
05 Dec - 08 Dec	Spirit Airlines
01 Dec - 08 Dec	Spirit Airlines
19 Dec - 06 Jan	Spirit Airlines

Also check the deals for one-way flights from San Juan 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 San Juan to Rio Negro in December from 212€

Return flights