Termas de Río Hondo International Airport (IATA: RHD, ICAO: SANR) serves the city of Termas de Río Hondo in Santiago del Estero Province, northwestern Argentina. The airport supports access to one of Argentina's most popular thermal spa destinations, attracting domestic tourists year-round. The facility was upgraded to handle increased passenger traffic, particularly associated with the Autódromo Termas de Río Hondo, which hosts international motorsport events including MotoGP rounds. These events have significantly boosted demand for air connections to the region. Regular domestic services connect the airport to Buenos Aires and other Argentine cities, operated primarily by national carriers. The airport's international designation allows it to handle cross-border charter and scheduled flights as needed.