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 Sunday and it would be best to avoid Friday, as prices are on average 79.78% higher than on Sunday. (Average prices, based on 1872307 datapoints.)
The best time to fly is at around 0. (Average prices, based on 1814 datapoints.)