Flight Yangon International Airport departs from Yangon Yangon International Airport at 07:45 and arrives at Bangkok Suvarnabhumi Airport at 09:40.
The flighttime is about 1h 25m. The distance travelled ("as the bird flies"): 516 Km. So the average speed is roughly 364 Km.
There is an 0.5 hour time difference between Yangon and Bangkok