Flight Changi Airport departs from Singapore Changi Airport at 11:25 and arrives at Penang Penang International Airport at 12:45.
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 Saturday, as prices are on average 109.11% higher than on Tuesday. (Average prices, based on 2002861 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 443 datapoints.)
We have a lot more statistics for flights AK 1720 and between Singapore and Penang.