The best day to arrive at Riyadh is Friday and it would be best to avoid Saturday, as prices are on average 224.43% higher than on Friday. (Average prices, based on 316249 datapoints.)
The cheapest airline flying from Riyadh to Dubai is Nas Air. They are 61% cheaper than Emirates. (Average prices, based on 207 datapoints.)
The best time to fly is at around 17. (Average prices, based on 447 datapoints.)