Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 03:00 and arrives at Lanzhou Lanzhou Zhongchuan Airport at 08:00.
The flighttime is about 12h 00m. The distance travelled ("as the bird flies"): 617 Km. So the average speed is roughly 51 Km.
There is an 7 hour time difference between Bangkok and Lanzhou
