Flight Changi Airport departs from Singapore Changi Airport at 16:40 and arrives at Phu Quoc Phu Quoc International Airport at 17:40.
The flighttime is about 2h 00m. The distance travelled ("as the bird flies"): 237 Km. So the average speed is roughly 118 Km.
There is an 1 hour time difference between Singapore and Phu Quoc
