When you are up in the mountains in Nepal, we would suggest you to be ready for anything. Weather forecasts for Lukla are never correct and different sources will give you different information. If it is a really bad day in terms of weather, the airlines will themselves cancel the flight and you might have to wait till the weather clears. Yes, flying in high altitude is never easy, even on a clear sunny day, the plane might face turbulence because of the wind blowing from the mountains. But overall the flight to Lukla is very exciting and it’s an experience that you will never forget