Lukla airport is the most dangerous airport in the world. because not only by accidental purpose. The main Cause is when flight occurs from Kathmandu to Lukla and the plane on the way the weather of Lukla is changing suddenly and the flight cannot land in Lukla. the airport is not flat. it 24 degrees.
when landing suddenly needs to set speed. when fly quickly take speed and height. in clear whether the airport, not that dangerous. But the Lukla weather quickly changes. afternoon big windy sometimes. so better time for the lukla flight is in the morning.