Flight Changi Airport departs from Singapore Changi Airport at 08:30 and arrives at Semarang Achmad Yani International Airport at 09:40.
The flighttime is about 2h 10m. The distance travelled ("as the bird flies"): 760 Km. So the average speed is roughly 351 Km.
There is an 1 hour time difference between Singapore and Semarang
The best day to arrive at Singapore is Thursday and it would be best to avoid Monday, as prices are on average 233.91% higher than on Thursday. (Average prices, based on 1031438 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 100 datapoints.)
We have a lot more statistics for flights MI 102 and between Singapore and Semarang.