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

Return flights

21 Jul - 25 Jul	Copa
25 Jul - 01 Aug	Copa
25 Jul - 29 Jul	Copa
23 Jul - 27 Jul	Copa
09 Jul - 16 Jul	Copa
09 Jul - 11 Jul	Copa
11 Jul - 17 Jul	Copa
15 Jul - 25 Jul	Copa
19 Jul - 28 Jul	Copa
11 Jul - 16 Jul	Copa
19 Jul - 27 Jul	Copa
30 Jul - 09 Aug	Copa
29 Jul - 09 Aug	Copa
26 Jul - 04 Aug	Copa
24 Jul - 08 Aug	Spirit Airlines
24 Jul - 09 Aug	Spirit Airlines
31 Jul - 08 Aug	Spirit Airlines
24 Jul - 06 Aug	Spirit Airlines
24 Jul - 14 Aug	Spirit Airlines
30 Jul - 04 Aug	Copa

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

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 Rio Negro to San Juan in July from $282

Return flights