Nanjing Lukou International Airport — Nanjing, China

Six dynasties and a republic once ruled from Nanjing, and the city's imperial past still shapes its identity even as Nanjing Lukou International Airport plugs it firmly into modern China's aviation network. NKG sits south of the city center, linked by metro rail, and serves the Yangtze River Delta alongside the larger Shanghai airports, absorbing significant passenger and cargo volume from Jiangsu province's dense cluster of manufacturing and technology firms. Nanjing served as capital of the Republic of China for much of the early twentieth century and endured occupation and immense suffering during the Japanese invasion of the late 1930s, a history commemorated at memorials across the city that remain solemn stops for domestic and international visitors alike. Today's Nanjing blends preserved Ming-dynasty walls and the Confucius Temple district with a fast-growing tech and education sector centered on its many universities, giving the airport a mix of business, academic, and heritage tourism traffic that keeps route networks expanding steadily.