Flight Phuket International Airport departs from Phuket Phuket International Airport at 16:45 and arrives at Penang Penang International Airport at 18:45.
The flighttime is about 1h 00m. The distance travelled ("as the bird flies"): 224 Km. So the average speed is roughly 224 Km.
There is an 1 hour time difference between Phuket and Penang