Flight Mandalay International Airport departs from Mandalay Mandalay International Airport at 12:45 and arrives at Bangkok Don Mueang International Airport at 15:00.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 528 Km. So the average speed is roughly 302 Km.
There is an 0.5 hour time difference between Mandalay and Bangkok