Hello, I amp I&;m happy to answer it for you.
There is no route that gives priority to time and price. Because if the price is low, you can only choose the train, and if the time is fast, you can only choos:
1. Shenzhen to Guangzhou, Guangzhou to Lhasa, or Shenzhen to Lhasa.
2. From Guangzhou to Chongqing or Chengdu or Xi amp amp； ; Or in Xining, and then to Lhasa. All major travel websites recommend transfer routes. It is recommended to stay in the transit city for one night, so as not to delay the first flight and miss the second flight. So that you can spend half a day in the city. I used to go to Lhasa from Dalian via Xi. ; Or Anxining, and stayed there for a day. I have visited all the scenic spots in Xi. ; Ann. And sometimes the price of transit tickets is not high, even lower than that of train tickets. We should always pay attention to website news and seize opportunities. Attached is the route recommended by a website for reference.
Pric: Shenzhen to Guangzhou, Guangzhou train to Lhasa, this time is very long.
Have a nice trip!