Flight Siem Reap-Angkor International Airport departs from Siem Reap Siem Reap-Angkor International Airport at 21:45 and arrives at Bangkok Don Mueang International Airport at 22:50.
The flighttime is about 1h 05m. The distance travelled ("as the bird flies"): 357 Km. So the average speed is roughly 330 Km.