Flight Rajiv Gandhi International Airport departs from Hyderabad Rajiv Gandhi International Airport at 04:10 and arrives at Bangkok Suvarnabhumi Airport at 09:25.
The flighttime is about 3h 45m. The distance travelled ("as the bird flies"): 2481 Km. So the average speed is roughly 662 Km.
There is an 1.5 hour time difference between Hyderabad and Bangkok