Flight Changi Airport departs from Singapore Changi Airport at 06:05 and arrives at Osaka Kansai International Airport at 15:35.The flight has a short stop at Kaohsiung. The flighttime is about 8h 30m. The distance travelled ("as the bird flies"): 3803 Km. So the average speed is roughly 447 Km. There is an 1 hour time difference between Singapore and Osaka