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

Return flights

19 Aug - 23 Aug	Copa
21 Aug - 25 Aug	Copa
16 Aug - 21 Aug	Copa
12 Aug - 19 Aug	Copa
23 Aug - 31 Aug	Copa
26 Aug - 27 Aug	jetBlue	direct
11 Aug - 18 Aug	jetBlue	direct
23 Aug - 30 Aug	jetBlue	direct
19 Aug - 23 Aug	jetBlue	direct
18 Aug - 21 Aug	jetBlue	direct
28 Aug - 01 Sep	Copa
23 Aug - 07 Sep	Spirit Airlines
18 Aug - 07 Sep	Spirit Airlines
21 Aug - 07 Sep	Spirit Airlines
23 Aug - 03 Sep	Spirit Airlines
23 Aug - 10 Sep	Spirit Airlines
16 Aug - 03 Sep	Spirit Airlines
26 Aug - 07 Sep	Spirit Airlines
26 Aug - 14 Sep	Spirit Airlines
19 Aug - 07 Sep	Spirit Airlines

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 $243

Return flights