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 Guangzhou is July and the most expensive month to fly is August. (Average prices, based on 1447 datapoints.)
The best day to arrive at Kuala Lumpur is Friday and it would be best to avoid Tuesday, as prices are on average 105.46% higher than on Friday. (Average prices, based on 1447 datapoints.)
The cheapest airline flying from Kuala Lumpur to Guangzhou is AirAsia. They are 71% cheaper than China Southern Airlines. (Average prices, based on 1453 datapoints.)
The best time to fly is at around 20. (Average prices, based on 2873 datapoints.)