Either from Chengdu or Hangzhou, it is a long journey by train to Urumqi. One trip K452/K453 is available from Chengdu to Urumqi, which takes around 47hs. And one seat costs about CNY305 and the ticket price for soft sleeper is CNY854. From Hangzhou to Urumqi, K594/K595 is operating and costs approximate 55hrs. For the detailed schedules and ticket price, you could check in the search form on the page directly.