The best month to fly between Jeddah and Istanbul is August and the most expensive month to fly is July. (Average prices, based on 429 datapoints.)
The best day to arrive at Jeddah is Wednesday and it would be best to avoid Sunday, as prices are on average 101.92% higher than on Wednesday. (Average prices, based on 429 datapoints.)
The best time to fly is at around 5. (Average prices, based on 735 datapoints.)