What type energy does airplanes use to fly?

Airplanes primarily use kinetic energy generated by thrust from engines to fly. Most commercial jets use jet fuel, which is a type of fossil fuel, to power their turbojet or turbofan engines. This fuel is burned to create thrust, allowing the aircraft to lift off and maintain flight. Additionally, lift is generated through the aerodynamic design of the wings, converting the airplane's forward motion into an upward force.