Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 01:30 and arrives at Cebu Mactan-Cebu International Airport at 06:25.
The flighttime is about 3h 55m. The distance travelled ("as the bird flies"): 2586 Km. So the average speed is roughly 660 Km.
There is an 1 hour time difference between Bangkok and Cebu