Flight Kuala Lumpur International Airport departs from Kuala Lumpur Kuala Lumpur International Airport at 06:55 and arrives at Semarang Achmad Yani International Airport at 08:30.
The flighttime is about 2h 35m. The distance travelled ("as the bird flies"): 1006 Km. So the average speed is roughly 389 Km.
There is an 1 hour time difference between Kuala Lumpur and Semarang