Flight Kuala Lumpur International Airport departs from Kuala Lumpur Kuala Lumpur International Airport at 07:20 and arrives at Hong Kong Hong Kong International Airport at 11:15.
The flighttime is about 3h 55m. The distance travelled ("as the bird flies"): 1494 Km. So the average speed is roughly 381 Km.
The best day to arrive at Kuala Lumpur is Wednesday and it would be best to avoid Sunday, as prices are on average 92.65% higher than on Wednesday. (Average prices, based on 4873865 datapoints.)
We have a lot more statistics for flights AK 138 and between Kuala Lumpur and Hong Kong.