The Boeing 737-900 is a narrow-body commercial aircraft that is part of the Boeing 737 family. It is designed for short to medium-haul flights and can typically seat between 180 to 220 passengers, depending on the airline's configuration. The aircraft features advanced aerodynamics and efficient engines, which contribute to its fuel efficiency. Introduced in the late 1990s, the B737-900 is known for its reliability and versatility. It is often used by airlines for domestic routes and has become a popular choice for carriers around the world. The aircraft is equipped with modern avionics and safety features, enhancing the flying experience for both pilots and passengers.