Flight Barcelona–El Prat Airport departs from Barcelona Barcelona–El Prat Airport at 07:50 and arrives at Istanbul Istanbul Atatürk Airport at 13:25.
The flighttime is about 4h 35m. The distance travelled ("as the bird flies"): 2973 Km. So the average speed is roughly 649 Km.
There is an 1 hour time difference between Barcelona and Istanbul
