Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 23:45 and arrives at Chitose New Chitose Airport at 08:30. The flighttime is about 6h 45m. The distance travelled ("as the bird flies"): 4728 Km. So the average speed is roughly 700 Km. There is an 2 hour time difference between Bangkok and Chitose