Flight Ngurah Rai International Airport departs from Denpasar Bali Ngurah Rai International Airport at 10:40 and arrives at Kupang El Tari International Airport at 14:35.The flight has a short stop at Labuanbajo.
The flighttime is about 3h 55m. The distance travelled ("as the bird flies"): 949 Km. So the average speed is roughly 242 Km.
The best month to arrive at Denpasar Bali is March and the most expensive month to fly is August. (Average prices, based on 2006 datapoints.)
We have a lot more statistics for flights IW 830 and between Denpasar Bali and Kupang.