How far is Guangzhou from Changsha? And tell me the best means of transportation.

The distance between these two cities is about 415 miles.
By high-speed train: Take it from the South Railway Station, and get off at Guangzhou South Railway Station. The train schedules are from 07:00 to 21:16. The duration is nearly 3 hours. The ticket fare of second class seat is CNY314, first class seat is CNY504 and business class seat is CNY995.

By flight: There are several direct flights from Huanghua Airport to Guangzhou Baiyun Airport. The trip only takes around 80 mins.

You can choose the way you like. :)