Cheapest one-way flights from Houston to Rio Negro in December from $118

AirHint found the following cheapest one-way flights from Houston (IAH) to Rio Negro (MDE) in December 2025 (see full year).

One-Way flights

29 Dec Spirit Airlines
04 Dec Spirit Airlines
02 Dec Spirit Airlines
14 Dec Spirit Airlines
24 Dec Spirit Airlines
13 Dec Spirit Airlines
10 Dec Spirit Airlines
26 Dec Spirit Airlines
25 Dec Spirit Airlines
23 Dec Frontier Airlines

Also check the deals for return flights from Houston to Rio Negro in December.

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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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