A passenger jet is a type of aircraft designed primarily for transporting people. These jets are equipped with multiple rows of seats, restrooms, and often in-flight entertainment systems. They can fly at high altitudes and cover long distances, making them essential for commercial air travel. Most passenger jets are powered by jet engines, which provide the necessary thrust for takeoff and cruising. Common models include the Boeing 737 and Airbus A320. Airlines operate these jets to connect cities and countries, facilitating global travel and commerce.