Flight Narita International Airport departs from Tokyo Narita International Airport at 14:55 and arrives at Cebu Mactan-Cebu International Airport at 19:05.
The flighttime is about 5h 10m. The distance travelled ("as the bird flies"): 2606 Km. So the average speed is roughly 504 Km.
There is an 1 hour time difference between Tokyo and Cebu