Boarding slogan for domestic flights at Penang International Airport. According to official website information of Penang International Airport, Penang Airport D refers to the boarding slogan of domestic flights at Penang International Airport. Boarding begins 30 minutes before departure, and the boarding gate is closed 15 minutes before departure. Penang, referred to as "Penang" for short, is one of the thirteen federal states in Malaysia. It is located in the northwest of Malaysia, with an area of 65,438+0,049 square kilometers. The whole state is divided into two parts by the Penang Strait, Penang and Victoria Province.