The best month to fly between Riyadh and Jeddah is February and the most expensive month to fly is September. (Average prices, based on 835 datapoints.)
The best day to arrive at Riyadh is Friday and it would be best to avoid Tuesday, as prices are on average 127.28% higher than on Friday. (Average prices, based on 1872232 datapoints.)
The best time to fly is at around 0. (Average prices, based on 1814 datapoints.)