Cheapest return flights from Houston to Rio Negro in September from $322

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

Return flights

08 Sep - 09 Sep Spirit Airlines
08 Sep - 24 Sep Spirit Airlines
08 Sep - 23 Sep Spirit Airlines
21 Sep - 24 Sep Spirit Airlines
21 Sep - 23 Sep Spirit Airlines
20 Sep - 24 Sep Spirit Airlines
20 Sep - 23 Sep Spirit Airlines
08 Sep - 27 Sep Spirit Airlines
21 Sep - 27 Sep Spirit Airlines
20 Sep - 27 Sep Spirit Airlines
21 Sep - 04 Oct Spirit Airlines
20 Sep - 04 Oct Spirit Airlines
21 Sep - 05 Oct Spirit Airlines
20 Sep - 05 Oct Spirit Airlines
21 Sep - 01 Oct Spirit Airlines
20 Sep - 01 Oct Spirit Airlines
14 Sep - 04 Oct Spirit Airlines
19 Sep - 04 Oct Spirit Airlines
14 Sep - 05 Oct Spirit Airlines
19 Sep - 05 Oct Spirit Airlines

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

Skyscanner

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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