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

Return flights

23 Sep - 30 Sep	Copa
04 Sep - 08 Sep	Copa
26 Sep - 29 Sep	Copa
27 Sep - 30 Sep	Copa
26 Sep - 30 Sep	Copa
25 Sep - 30 Sep	Copa
11 Sep - 18 Sep	Copa
01 Sep - 08 Sep	Copa
28 Sep - 04 Oct	Copa
25 Sep - 29 Sep	Copa
27 Sep - 01 Oct	Copa
01 Sep - 08 Sep	Avianca	direct
29 Sep - 06 Oct	Copa
27 Sep - 03 Oct	Copa
25 Sep - 02 Oct	Copa
27 Sep - 04 Oct	Copa
27 Sep - 02 Oct	Copa
28 Sep - 05 Oct	Avianca

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

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 September from 212€

Return flights