Tamuín National Airport (Spanish: Aeropuerto Nacional de Tamuín) (IATA: TSL, ICAO: MMTN) is a regional airport located in Tamuín, San Luis Potosí, Mexico. It facilitates national air traffic for the eastern San Luis Potosí region, including Ciudad Valles. Over the years, the airport has experienced intermittent service by regional airlines, providing seasonal flights within the region and to Mexico City. Aeromar initiated commercial operations at this airport from 2019 to 2020, resulting in an increased passenger count to 4,745. Currently, the airport does not have scheduled passenger public services. The nearest airport that serves commercial flights is Tampico International Airport. Situated at an elevation of 50 metres (160 ft) above mean sea level, the airport covers an area of 130 hectares (320 acres).