Travel from Hangzhou to Chengdu for Jiuzhaigou, any transportation available?

You mean the travel route is HZ-Chengdu-Jiuzhaigou-Meizhou?
If so, the HZ is about 2000km by road. From Chengdu to Jiuzhaigou, there is around 500 to 600km. From Jiuzhaigou to Meizhou, there is around 2300km.

To jiuzhaigou, you need to trasnfer in Chengdu. It is suggested to fly to Chengdu from HZ. From chengdu to Jiuzhaigou, the buses from Xinnanmen Bus Station to the valley takes around 8 to 9 hours and the flight takes around 50 minutes. I think you can try a nice method depending on your real situation. From Chengdu to Meizhou, you need to fly to Guangzhou first and then take a long-distance bus to Meizhou.