DGT stands for Dumaguete City Airport, while SHA stands for Shanghai Hongqiao Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Shanghai Pu Dong Airport (PVG), Guangzhou Baiyun Airport (CAN), Beijing Capital Airport (PEK), Shenzhen Airport (SZX), Qingdao Jiaodong Intl Airport (TAO) are some additional IATA codes for airports related to your trip. Find deals