The best month to fly between Riyadh and Islamabad is September and the most expensive month to fly is April. (Average prices, based on 247 datapoints.)
The best day to arrive at Riyadh is Thursday and it would be best to avoid Tuesday, as prices are on average 409.71% higher than on Thursday. (Average prices, based on 4000287 datapoints.)
The cheapest airline flying from Riyadh to Islamabad is airblue. They are 32% cheaper than Saudi Arabian Airlines. (Average prices, based on 251 datapoints.)