Flight Ngurah Rai International Airport departs from Denpasar Bali Ngurah Rai International Airport at 14:15 and arrives at Medan Kualanamu International Airport at 18:00.
The flighttime is about 4h 45m. The distance travelled ("as the bird flies"): 1846 Km. So the average speed is roughly 389 Km.
There is an 1 hour time difference between Denpasar Bali and Medan