Changchun Longjia International Airport is an international airport serving Changchun, the capital of Northeast China’s Jilin province, for which it is an aviation hub in China's Civil Airport System. The airport is 31.2 kilometres (19.4 mi) northeast of provincial capital Changchun and 76 km (47 mi) northwest of Jilin City: responsibility for the operation of the airport is shared by both cities. Changchun Airport is a regional hub for China Southern Airlines.

Changchun is the capital and largest city of Jilin Province in China. Lying in the center of the Songliao Plain, Changchun is administered as a sub-provincial city, comprising 7 districts, 1 county and 3 county-level cities. According to the 2020 census of China, Changchun had a total population of 9,066,906 under its jurisdiction. The city's metro area, comprising 5 districts and 1 development area, had a population of 5,019,477 in 2020, as the Shuangyang and Jiutai districts are not urbanized yet. It is one of the biggest cities in Northeast China, along with Shenyang, Dalian and Harbin.