The 886 km first-level national railway from Nanning to Kunming links Yunnan with Guizhou Province and Guangxi Zhuang Autonomous Region. Second-level railways include those from Guangtong to Dali, and from Kunyang to Yuxinan.
Second-level national highways stretch 958 km, third-level highways, 7,571 km and fourth-level highways, 52,248 km. The province has formed a network of communication lines radiating from Kunming to Sichuan and Guizhou provinces and Guangxi and Tibet autonomous regions, and further on to Myanmar, Laos, Vietnam and Thailand.
In 1995, the province put an investment of 171 million yuan to add another 807 km of navigation lines. It built 2 wharfs with an annual handling capacity of 300,000-400,000 tons each and 4 wharfs with an annual handling capacity of 100,000 tons each. The annual volume of goods transported was 2 million tons and that of passengers transported, 2 million.
The province has 19 domestic air routes from Kunming to Beijing, Shanghai, Guangzhou, Chengdu, Haikou, Chongqing, Shenyang, Harbin, Wuhan, Xi'an, Lanzhou, Hangzhou, Xiamen, Nanning, Shenzhen, Guiyang, Changsha, Guilin and Hong Kong; three provincial air routes from Kunming to Jinghong, Mangshi and Simao; and three international air routes from Kunming to Bangkok, Yangon and Vientiane.
The Wujiaba Airport in Kunming is a national first-class airport and Xishuangbanna, Mangshi and Simao airports are second-class terminals.