The best month to fly between Hanoi and Kuala Lumpur is August and the most expensive month to fly is May. (Average prices, based on 202 datapoints.)
The best day to arrive at Hanoi is Wednesday and it would be best to avoid Saturday, as prices are on average 50.08% higher than on Wednesday. (Average prices, based on 202 datapoints.)
The cheapest airline flying from Hanoi to Kuala Lumpur is AirAsia. They are 44% cheaper than MasWings. (Average prices, based on 208 datapoints.)