Lukla airport is the most dangerous airport in the world. because not only by accidentally purpose.The main Cause is when flight occur from kathmandu to lukla and the plane on the way the weather of lukla is change suddenly and the flight cannot landed in lukla. the airport is not flat. it 24 degree. when landing suddenly need to setting speed. when fly quickly take speed and height. in clear weather the airport not that danger. But the lukla weather quickly change.afternoon big windy sometimes. so better time for lukla flight is in the morning.