Flight Istanbul Atatürk Airport departs from Istanbul Istanbul Atatürk Airport at 20:15 and arrives at Delhi Indira Gandhi International Airport at 04:50.
The flighttime is about 6h 05m. The distance travelled ("as the bird flies"): 5409 Km. So the average speed is roughly 889 Km.
There is an 2.5 hour time difference between Istanbul and Delhi