Flight King Abdulaziz International Airport departs from Jeddah King Abdulaziz International Airport at 14:45 and arrives at Istanbul Istanbul Atatürk Airport at 19:00.
The flighttime is about 4h 15m. The distance travelled ("as the bird flies"): 2111 Km. So the average speed is roughly 497 Km.
The best day to arrive at Jeddah is Wednesday and it would be best to avoid Sunday, as prices are on average 407.47% higher than on Wednesday. (Average prices, based on 1928917 datapoints.)
We have a lot more statistics for flights TK 121 and between Jeddah and Istanbul.
