Please be aware that Kuala Lumpur has multiple airports and that these results are for all airports serving the city.
The best month to fly between Kuala Lumpur and Jeddah is June and the most expensive month to fly is August. (Average prices, based on 892 datapoints.)
The best day to arrive at Kuala Lumpur is Saturday and it would be best to avoid Friday, as prices are on average 14.83% higher than on Saturday. (Average prices, based on 1572 datapoints.)
The cheapest airline flying from Kuala Lumpur to Jeddah is AirAsia X. They are 55% cheaper than Saudi Arabian Airlines. (Average prices, based on 902 datapoints.)
The best time to fly is at around 4. (Average prices, based on 3269 datapoints.)