Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 00:05 and arrives at Paris Paris Charles de Gaulle Airport at 07:10.
The flighttime is about 12h 05m. The distance travelled ("as the bird flies"): 10699 Km. So the average speed is roughly 885 Km.
There is an 5 hour time difference between Bangkok and Paris