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

Return flights

21 Aug - 03 Sep	Avianca	direct
31 Aug - 07 Sep	Avianca	direct
31 Aug - 02 Sep	Copa
28 Aug - 31 Aug	Copa
28 Aug - 30 Aug	Copa
29 Aug - 02 Sep	Copa
28 Aug - 02 Sep	Copa
19 Aug - 26 Aug	Avianca	direct
20 Aug - 27 Aug	Avianca	direct
18 Aug - 22 Aug	Avianca	direct
18 Aug - 28 Aug	Avianca	direct
18 Aug - 25 Aug	Avianca	direct
21 Aug - 27 Aug	Avianca	direct
22 Aug - 24 Aug	Avianca	direct
21 Aug - 04 Sep	Avianca	direct
20 Aug - 25 Aug	Avianca	direct
28 Aug - 08 Sep	Delta
29 Aug - 05 Sep	Avianca
28 Aug - 15 Sep	Delta
30 Aug - 08 Sep	Delta

Also check the deals for one-way flights from Miami 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 Miami to Rio Negro in August from 213€

Return flights