Cheapest return flights from Houston to Rio Negro in December from $347

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

Return flights

07 Dec - 16 Dec Spirit Airlines
09 Dec - 16 Dec Spirit Airlines
05 Dec - 16 Dec Spirit Airlines
03 Dec - 16 Dec Spirit Airlines
03 Dec - 05 Dec Spirit Airlines
07 Dec - 10 Dec Spirit Airlines
05 Dec - 10 Dec Spirit Airlines
07 Dec - 17 Dec Spirit Airlines
09 Dec - 17 Dec Spirit Airlines
03 Dec - 10 Dec Spirit Airlines
18 Dec - 08 Jan Volaris El Salvador
31 Dec - 08 Jan Spirit Airlines
30 Dec - 08 Jan Spirit Airlines
29 Dec - 08 Jan Spirit Airlines
26 Dec - 11 Jan Avianca
31 Dec - 11 Jan Spirit Airlines
30 Dec - 11 Jan Spirit Airlines
29 Dec - 11 Jan Spirit Airlines
27 Dec - 08 Jan Spirit Airlines
28 Dec - 08 Jan Spirit Airlines

Also check the deals for one-way 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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