Trang International Airport (IATA: TST, ICAO: VTST) is in Khok Lo subdistrict, Mueang Trang district, Trang province in southern Thailand, 7 kilometres from downtown Trang. Despite being solely domestic, passenger numbers have been surging from 143 to almost 800 thousand from 2009 to 2017 and the terminal is being expanded to 9,000 sq m. by mid 2019. The runway is planned to extend to 3,000 meters pending environmental review. A second passenger terminal would be built by 2021, pushing capacity ... Trang International Airport (IATA: TST, ICAO: VTST) is in Khok Lo subdistrict, Mueang Trang district, Trang province in southern Thailand, 7 kilometres from downtown Trang. Despite being solely domestic, passenger numbers have been surging from 143 to almost 800 thousand from 2009 to 2017 and the terminal is being expanded to 9,000 sq m. by mid 2019. The runway is planned to extend to 3,000 meters pending environmental review. A second passenger terminal would be built by 2021, pushing capacity to 3. 7 million a year.