Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 12:15 and arrives at Rome Leonardo da Vinci–Fiumicino Airport at 19:15. The flighttime is about 13h 00m. The distance travelled ("as the bird flies"): 9703 Km. So the average speed is roughly 746 Km. There is an 6 hour time difference between Bangkok and Rome