Flight Soekarno–Hatta International Airport departs from Jakarta Soekarno–Hatta International Airport at 09:10 and arrives at Lombok Lombok International Airport at 12:15.
The flighttime is about 2h 05m. The distance travelled ("as the bird flies"): 1073 Km. So the average speed is roughly 515 Km.
There is an 1 hour time difference between Jakarta and Lombok