Answered by Kennedy from USA | Dec. 09, 2018 23:40
There are two direct trains from Kunming Railway Station to Zhangjiajie Railway Station with duration of about 18.5 – 19.5 hours. On arrival at the railway station, you need to walk about 500 meters to the Central Bus Station to take the special line to the forest park.
There is no direct flight between so you have to make a transfer in Changsha Huanghua Airport. The duration is uncertain, about 5-24 hours. You can choose one according to your convenience. On arrival at the airport, you need to take a taxi to the Central Bus Station to take the special line to the forest park.
You are not advised to take a taxi because it is very very expensive.