However,apart from Yunnan province,communication hubs have not formed yet in all the other regions. There are few regional airports,and air routes are mainly city-to-city routes. Spoke-and-wheel-like air route network has not been formed yet.

• 但除云南省外，其他地区区域性枢纽尚未完全形成，支线机场数量较少，航线结构还是以城市对飞为主，尚未形成轮辐式航空网络。