Flight Xi'an Xianyang International Airport departs from Xi an Xi'an Xianyang International Airport at 12:30 and arrives at Bangkok Suvarnabhumi Airport at 15:35.
The flighttime is about 4h 05m. The distance travelled ("as the bird flies"): 1052 Km. So the average speed is roughly 258 Km.
There is an 1 hour time difference between Xi an and Bangkok