Cheapest return flights from Houston to Rio Negro in August from $326

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

Return flights

22 Aug - 27 Aug Spirit Airlines
10 Aug - 20 Aug Spirit Airlines
14 Aug - 30 Aug Spirit Airlines
26 Aug - 09 Sep Spirit Airlines
17 Aug - 20 Aug Spirit Airlines
12 Aug - 20 Aug Spirit Airlines
24 Aug - 09 Sep Spirit Airlines
26 Aug - 27 Aug Spirit Airlines
10 Aug - 14 Aug Spirit Airlines
10 Aug - 13 Aug Spirit Airlines
10 Aug - 25 Aug Spirit Airlines
10 Aug - 16 Aug Spirit Airlines
21 Aug - 09 Sep Spirit Airlines
20 Aug - 09 Sep Spirit Airlines
26 Aug - 05 Sep Spirit Airlines
26 Aug - 03 Sep Spirit Airlines
24 Aug - 05 Sep Spirit Airlines
24 Aug - 03 Sep Spirit Airlines
17 Aug - 05 Sep Spirit Airlines
17 Aug - 03 Sep Spirit Airlines

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

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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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