What is the highest point at ground level in Liverpool?
Asked in Airplanes and Aircraft, Physics, Geography
How many kilometers from the ground do jet airplanes fly on?
I think the maximum flight level for commercial passenger airliners is 41,000 feet. That's 12.5 kilometers above sea level. The altitude above the ground depends on how high the ground is. The highest ground on earth is the peak of Mt. Everest, about 8.9 km above sea level. So the maximum flight level for a passenger jet is about 3.6 km higher than the highest point on the ground.