* Boeing 737-100: The original model of the Boeing 737, introduced in 1967. It could seat up to 115 passengers and had a maximum range of about 1,950 miles (3,140 kilometers).
* Boeing 737-200: An extended fuselage version of the 737-100, introduced in 1968. It could seat up to 130 passengers and had a similar maximum range as the 737-100.
* Boeing 737-200 Advanced: An improved version of the 737-200, introduced in 1971. It featured various enhancements, including a more powerful engine and improved aerodynamic design, which resulted in increased fuel efficiency and reduced noise levels.
Boeing 737 Classic models (second generation):
* Boeing 737-300: Introduced in 1984, the 737-300 was a further stretched version of the 737-200. It could seat up to 149 passengers and had a slightly increased maximum range compared to the 737-200.
* Boeing 737-400: Introduced in 1988, the 737-400 was designed for longer-range operations. It featured extended wingtips, a larger fuel capacity, and more efficient engines, which allowed it to fly longer distances than previous 737 models.
* Boeing 737-500: Introduced in 1990, the 737-500 was a shortened version of the 737-300, primarily intended for short-haul operations. It could seat up to 132 passengers and had a similar range to the 737-300.
Boeing 737 Next Generation (NG) models (third generation):
* Boeing 737-600: Introduced in 1995, the 737-600 was a shortened version of the 737-500, designed for regional routes and low-cost airlines. It could seat up to 130 passengers and had a range similar to the 737-500.
* Boeing 737-700: Introduced in 1998, the 737-700 was a stretched version of the 737-300, with an increased seating capacity of up to 148 passengers. It had similar range capabilities to the 737-300.
* Boeing 737-800: Introduced in 1998, the 737-800 is the most popular variant of the 737 NG series. It is a stretched version of the 737-700 with a seating capacity of up to 189 passengers. The 737-800 offers extended range capabilities compared to its predecessors.
* Boeing 737-900: Introduced in 2001, the 737-900 is the longest variant of the 737 NG series. It can accommodate up to 215 passengers and has a maximum range comparable to the 737-800.
Boeing 737 MAX models (fourth generation):
* Boeing 737 MAX 7: Introduced in 2017, the 737 MAX 7 is a modernized and more fuel-efficient version of the 737-700. It can seat up to 138 passengers and has increased range capabilities compared to the 737-700.
* Boeing 737 MAX 8: Introduced in 2017, the 737 MAX 8 is the most common version of the MAX series. It is larger than the MAX 7 and can carry up to 175 passengers. The 737 MAX 8 also offers improved fuel efficiency and extended range.
* Boeing 737 MAX 9: Introduced in 2018, the 737 MAX 9 is the largest variant of the MAX series. It can seat up to 220 passengers and has similar range capabilities to the MAX 8.
* Boeing 737 MAX 10: The largest and most recent variant of the 737 MAX family, the 737 MAX 10 can accommodate up to 230 passengers and has a slightly longer range than other MAX models. It received its type certification in 2023 and is scheduled to enter service in 2024.
