Quanzhou Jinjiang International Airport — Quanzhou, China

Quanzhou Jinjiang International Airport, coded JJN, sits between the twin cities of Quanzhou and Jinjiang on China's Fujian coast, a region that flourished centuries ago as one of the world's great Maritime Silk Road ports. Today the airport primarily serves a different kind of commerce: Jinjiang has become a manufacturing center for sportswear and footwear, home to brands whose factories supply much of China's domestic athletic shoe market. JJN handles significant domestic traffic to cities across China along with a notable set of routes to Kinmen, the Taiwan-administered island just offshore, reflecting the close cross-strait ties of the local Hoklo-speaking population. Many overseas Chinese communities across Southeast Asia trace their ancestry to this part of Fujian, giving the airport an outsized role in diaspora travel relative to the size of the cities it serves.