Zhanjiang to Chongqing

Hello there,

I wanted to ask for recommendation to travel from Zhanjiang to Chongqing. I looked at train tickets and so far that is the only way I can see to travel. I tried looking for a flight but it seems there are no flights direct from Zhanjiang to Chongqing. I would like to get there the fastest way possible because by train is too long unless I have no other choice. I would even consider doing a connect flight if possible. Any advice on the fastest route is greatly appreciated.