Flight Phuket International Airport departs from Phuket Phuket International Airport at 08:05 and arrives at Delhi Indira Gandhi International Airport at 11:45.
The flighttime is about 5h 10m. The distance travelled ("as the bird flies"): 2321 Km. So the average speed is roughly 449 Km.
There is an 1.5 hour time difference between Phuket and Delhi