The best month to arrive at Riyadh is May and the most expensive month to fly is August. (Average prices, based on 1871 datapoints.)
The best day to arrive at Riyadh is Sunday and it would be best to avoid Friday, as prices are on average 55.55% higher than on Sunday. (Average prices, based on 1713 datapoints.)
The cheapest airline flying to Riyadh is Nas Air. They are 57% cheaper than Emirates. (Average prices, based on 1905 datapoints.)