Flight Changi Airport departs from Singapore Changi Airport at 21:35 and arrives at Penang Penang International Airport at 22:50.
The flighttime is about 1h 15m. The distance travelled ("as the bird flies"): 423 Km. So the average speed is roughly 338 Km.
The best day to arrive at Singapore is Monday and it would be best to avoid Saturday, as prices are on average 215.36% higher than on Monday. (Average prices, based on 2113513 datapoints.)
We have a lot more statistics for flights TR 422 and between Singapore and Penang.
THB
