AirHint found the following cheapest return flights from San Salvador (SAL) to Rio Negro (MDE) in March 2026 (see full year).

Return flights

04 Mar - 08 Mar	Avianca	direct
17 Mar - 20 Mar	Avianca
19 Mar - 23 Mar	Avianca	direct
12 Mar - 16 Mar	Copa
14 Mar - 17 Mar	Copa
15 Mar - 18 Mar	Copa
10 Mar - 14 Mar	Copa
13 Mar - 16 Mar	Copa
16 Mar - 25 Mar	Copa
04 Mar - 07 Mar	Copa
25 Mar - 02 Apr	Avianca	direct
29 Mar - 06 Apr	Avianca
30 Mar - 03 Apr	Avianca	direct
30 Mar - 04 Apr	Avianca	direct
27 Mar - 01 Apr	Copa
29 Mar - 04 Apr	Avianca
28 Mar - 09 Apr	Copa
27 Mar - 04 Apr	Copa
28 Mar - 01 Apr	Copa
28 Mar - 02 Apr	Copa

Also check the deals for one-way flights from San Salvador to Rio Negro in March.

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 March from $298

Return flights