Flight Changi Airport departs from Singapore Changi Airport at 21:40 and arrives at Penang Penang International Airport at 23:05.
The flighttime is about 1h 25m. The distance travelled ("as the bird flies"): 423 Km. So the average speed is roughly 299 Km.
The best day to arrive at Singapore is Monday and it would be best to avoid Friday, as prices are on average 149.55% higher than on Monday. (Average prices, based on 2124585 datapoints.)
We have a lot more statistics for flights AK 1730 and between Singapore and Penang.