737300

The Boeing 737-300 is a member of the Boeing 737 Classic family, a line of narrow-body twin-engine airliners developed by Boeing for short- to medium-range routes. It was produced to replace the 737-200, offering greater capacity and efficiency through a lengthened fuselage, updated wings and avionics, and the use of more efficient turbofan engines. Deliveries began in the mid- to late 1980s and continued until the late 1990s, spanning a wide range of passenger and freight configurations.

Compared with the preceding model, the -300 features a longer fuselage to accommodate more passengers, a redesigned wing, and improved cockpit and systems that enhanced reliability and commonality with other Classic variants. It typically uses CFM56 family turbofan engines, providing improved thrust and efficiency. The Classic family allowed airlines to benefit from a common type rating with the -400 and -500 variants, aiding maintenance and crew training.

Main variants included the passenger 737-300 and the cargo-oriented 737-300F, as well as various transport and corporate jet conversions. The aircraft was widely operated by airlines around the world, including low-cost carriers, legacy carriers, and freight operators. As newer generations of the 737 family were introduced, many -300s were retired, converted to freighter roles, or stored, though a number remain in service in some regions and cargo fleets.

Typical seating is around 126 to 149 in two-class layouts, with a range of roughly 2,500 to 3,000 nautical miles depending on configuration and variant. It is powered by CFM56 engines and features the standard 737 Classic airframe with a conventional fuselage and tail design.