Flight Sardar Vallabhbhai Patel International Airport departs from Ahmedabad Sardar Vallabhbhai Patel International Airport at 06:20 and arrives at Dehradun Dehradun Airport at 08:00.
The flighttime is about 1h 40m. The distance travelled ("as the bird flies"): 647 Km. So the average speed is roughly 388 Km.