Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 01:10 and arrives at Zurich Zürich Airport at 06:20.
The flighttime is about 8h 40m. The distance travelled ("as the bird flies"): 7705 Km. So the average speed is roughly 889 Km.
There is an 3.5 hour time difference between Delhi and Zurich