The Boeing 737-900 is a narrow-body commercial aircraft designed for short to medium-haul flights. It is part of the Boeing 737 family and can typically seat between 180 to 220 passengers, depending on the configuration. The aircraft is known for its fuel efficiency and reliability, making it a popular choice among airlines. Equipped with advanced avionics and powerful engines, the 737-900 offers improved performance compared to its predecessors. It features a longer fuselage than earlier models, allowing for increased passenger capacity. The aircraft is widely used by various airlines around the world for domestic and international routes.