Flight Changi Airport departs from Singapore Changi Airport at 22:30 and arrives at Penang Penang International Airport at 23:50.
The flighttime is about 1h 20m. The distance travelled ("as the bird flies"): 423 Km. So the average speed is roughly 317 Km.
The best day to arrive at Singapore is Tuesday and it would be best to avoid Sunday, as prices are on average 118.71% higher than on Tuesday. (Average prices, based on 2108167 datapoints.)
We have a lot more statistics for flights AK 1726 and between Singapore and Penang.