There are 3 flights from Chengdu, capital city of Sichuan Province, to Huangshan each week. You can also take flight to Huangshan from Chongqing, a big metropolis city located about 340 km (4 hours by bus) east of Chengdu. Since there is no direct train from Chengdu to Huangshan, you'll need to change to another train when you reach Nanchang, capital of Jiangxi Province.
See: Huangshan and Panda Tour
The following is one of the options, which is the fastest and most time-saving, and you needn't to wait for a long time for your next train to Huangshan. Please read the following train timetable.
Chengdu--Nanchang - Huangshan Regular Trains Timetable
||Name of Station and Arrival Time|
Hard sleeper from Chengdu to Nanchang costs RMB387 (lower berth) while soft sleeper costs RMB590 (lower berth). From Nanchang to Huangshan, hard sleeper costs RMB130 and soft sleeper costs RMB195.
You may also take flight to Hangzhou, the capital of Zhejiang Province, and then take bus from Hangzhou to Huangshan.