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 August and the most expensive month to fly is September. (Average prices, based on 203 datapoints.)
The best day to arrive at Kuala Lumpur is Saturday and it would be best to avoid Friday, as prices are on average 75.01% higher than on Saturday. (Average prices, based on 216 datapoints.)
The cheapest airline flying from Kuala Lumpur to Guangzhou is AirAsia. They are 61% cheaper than China Southern Airlines. (Average prices, based on 213 datapoints.)
The best time to fly is at around 20. (Average prices, based on 409 datapoints.)