Zhoushan Putuoshan International Airport — Zhoushan, China

Zhoushan Putuoshan International Airport, coded HSN, sits on an island within the Zhoushan archipelago off the coast near Ningbo and Shanghai, providing air access to a chain of islands dotted with fishing villages and one especially significant Buddhist pilgrimage site. Mount Putuo, from which the airport draws part of its name, ranks among China's four sacred Buddhist mountains and attracts large numbers of religious pilgrims and tourists throughout the year, many of whom transit through HSN before continuing by boat to the sacred island itself. The archipelago's economy has historically centered on fishing, and the islands remain known for seafood alongside their growing tourism sector. Domestic flights link the airport primarily to Shanghai, Hangzhou, and other cities in eastern China, with ferry connections extending the journey onward to the smaller surrounding islands.