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

Return flights

08 Aug - 18 Aug	jetBlue	direct
02 Aug - 09 Sep	Copa
17 Aug - 23 Aug	Copa
22 Aug - 07 Sep	jetBlue	direct
12 Aug - 17 Aug	Copa
19 Aug - 25 Aug	Copa
12 Aug - 19 Aug	Copa
21 Aug - 24 Aug	Copa
19 Aug - 22 Aug	Copa
01 Aug - 15 Aug	jetBlue
11 Aug - 29 Aug	Avianca
28 Aug - 02 Sep	Avianca
11 Aug - 23 Aug	Copa
22 Aug - 08 Sep	Spirit Airlines
19 Aug - 08 Sep	Spirit Airlines
25 Aug - 08 Sep	Spirit Airlines
30 Aug - 01 Sep	Avianca
19 Aug - 07 Sep	Spirit Airlines
19 Aug - 05 Sep	Spirit Airlines
29 Aug - 02 Sep	Avianca

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

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 August from 198€

Return flights