train or bus from xian to chengdu then chongqing

It is learned that there is only one bus departing at 08:00 each day to Chengdu from Xian. But many trains are operating daily on the route. And you could take a train to Chongqing first with around 11hrs and then take a bullet train to Chengdu. About the train info. such as schedule and ticket price, you could check on the website by yourself.