Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 00:05 and arrives at Nagoya Chubu Centrair International Airport at 07:30.
The flighttime is about 5h 25m. The distance travelled ("as the bird flies"): 4107 Km. So the average speed is roughly 758 Km.
There is an 2 hour time difference between Bangkok and Nagoya
