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

Return flights

07 Dec - 10 Dec	Avianca
07 Dec - 12 Dec	Avianca
09 Dec - 17 Dec	Avianca
08 Dec - 12 Dec	Avianca
11 Dec - 14 Dec	Avianca
11 Dec - 18 Dec	Avianca
08 Dec - 13 Dec	Avianca
06 Dec - 13 Dec	Avianca
02 Dec - 05 Dec	Avianca
08 Dec - 15 Dec	Avianca
21 Dec - 15 Jan	Copa
30 Dec - 05 Jan	Copa
28 Dec - 02 Jan	Copa
27 Dec - 05 Jan	Copa
28 Dec - 06 Jan	Avianca
27 Dec - 06 Jan	Copa
30 Dec - 04 Jan	Copa
29 Dec - 03 Jan	Copa
28 Dec - 02 Jan	Avianca	direct
26 Dec - 06 Jan	Copa

Also check the deals for one-way flights from San Salvador 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 Salvador to Rio Negro in December from 199€

Return flights