What layer of the atmosphere do planes fly?

Jet planes fly through the troposphere to reach the stratosphere, where planes fly more smoothly and experience less weather interference. The height of the troposphere varies with altitude and season. The stratosphere is dry, with little water vapor. Therefore, a small amount of clouds are found in this layer compared to the troposphere. read more

The layer of the Earth's atmosphere where most planes fly is the TROPOSPHERE. Explanation: The TROPOSPHERE is the layer of the atmosphere closest to the Earth. It extends approximately 7 miles, or 11 km above sea level, but is thicker at the equator and thinner at the poles. read more

Atmospheric Levels. The atmosphere is comprised of different layers: the troposphere, the stratosphere, the mesosphere, the thermosphere, and the exosphere. The troposphere is the atmospheric level closest to Earth, while the exosphere is the farthest away, extending 6,200 miles from the Earth. read more