Lanzhou - Dunhuang Train

Around 4 pairs of normal speed trains are also in service from Lanzhou to Dunhuang or vice versa. They finish the 1,110 kilometers’ distance (690 miles) in 10.5 -15 hours. The ticket cost is around CNY 300 for a hard sleeper. The bullet trains may be put in service in high travel seasons, cutting the travel time to about 8 hours.

Presently, high speed trains do not run between. If coming into service again, it will require 7.5 to 8.5 hours to finish the journey and a second class seat will cost CNY 324.
 

Duration: 10.5 - 15 hours
Distance: 1,110 kilometers (690 miles)
Top speed: 120 km/h (75 mph)
Operated at: Lanzhou Railway Station, Dunhuang Railway Station
Major stations along the way: Lanzhou West, Hekou South, Yongdeng, Tianzhu, Weiwu South, Weiwu, Jinchang, Shandan, Zhangye, Jiuquan, Jiayuguan, Yumen, Shulehe, Guazhou 
  Aside from a rail trip, passengers can also travel by direct flight which takes about 2 hours. The full price for an economy class seat is up to CNY1,950 per person, but usually passengers are given a 20% - 60% discount. In this case, flight is a preferable choice for travelers.

In contrast, trains take a longer time, but they cost less, so passengers with limited budget and adequate travel time are recommended to take trains between Lanzhou and Dunhuang.
 

 Zhangye
Located in the western region of Gansu Province, Zhangye is about 500 kilometers (311 miles) from Lanzhou city. As a vital point on the ancient Silk Road, Zhangye has a long history and beautiful natural scenery. When going there, tourists cannot miss the Wooden Pagoda Temple, Danxia National Geological Park, Shandan Horse Farm, and Giant Buddha Temple. Passengers can go there easily by air, train, and long-distance bus.

 Dunhuang
Located in the northwest part of Gansu Province, Dunhuang city is well-known to the world because of the amazing Mogao Caves which is a shrine of Buddhist art treasures, including 735 cases, 45,000 square meters (53,820 square yards) colorful murals, and 2,415 Buddha statues. In addition, Dunhuang city also has Yangguan Pass, Yumenguan Pass, Yardang National Geopark, Crescent Lake and many other attraction sites which are worth a visit. The city can be reached by air, train, and long-distance bus.
 Major Rail Lines from Lanzhou to:
Major Rail Lines from Dunhuang to: