Flight Boryspil International Airport departs from Kiev Boryspil International Airport at 20:15 and arrives at Baku Heydar Aliyev International Airport at 01:35.
The flighttime is about 3h 20m. The distance travelled ("as the bird flies"): 2283 Km. So the average speed is roughly 685 Km.
There is an 2 hour time difference between Kiev and Baku