Which landlocked country in South Asia and one of the region's least populous nations has only four airports?
Yongphulla Airport Yongphulla Airport (IATA: YON, ICAO: VQTY) (also known as Yonphula Airport) is a domestic airport in Bhutan, one of only four airports in the country. It is located near the town of Trashigang in Trashigang District. As of January 2015, the airport remains closed due to ongoing runway repair.
Brunei International Airport Brunei International Airport (Malay: "Lapangan Terbang Antarabangsa Brunei"; Jawi: لاڤڠن تربڠ انتارابڠسا بروني ) (IATA: BWN, ICAO: WBSB) is the primary airport in the nation of Brunei. It serves as the home base for Royal Brunei Airlines. The Royal Brunei Air Force is also based at the Rimba Air Base, which is located within the airport's area. The airport serves destinations across Asia and Oceania as well as flights to London Heathrow (via Dubai).