Boeing 737 Next Generation
| Boeing 737 Next Generation 737-600/-700/-800/-900 | |
|---|---|
| A 737-800, the best-selling 737NG variant, of Delta Air Lines in 2025 | |
| General information | |
| Type | Narrow-body jet airliner |
| National origin | United States |
| Manufacturer | Boeing Commercial Airplanes |
| Status | In service, military variants in production |
| Primary users | Southwest Airlines |
| Number built | 7,120 as of January 2026 |
| History | |
| Manufactured | 1996–2020 (civilian variants) 1996–present (military variants) |
| Introduction date | December 17, 1997 with Southwest Airlines |
| First flight | February 9, 1997 |
| Developed from | Boeing 737 Classic |
| Variants | Boeing Business Jet Boeing C-40 Clipper Boeing E-7 Wedgetail Boeing P-8 Poseidon |
| Developed into | Boeing 737 MAX |
The Boeing 737 Next Generation, commonly abbreviated as 737NG, or 737 Next Gen, is a twin-engine narrow-body aircraft produced by Boeing Commercial Airplanes. Launched in 1993 as the third-generation derivative of the Boeing 737, it has been produced since 1997.
The 737NG is an upgrade of the 737 Classic (–300/–400/–500) series. Compared to the 737 Classic, it has a redesigned wing with a larger area, a wider wingspan, greater fuel capacity, higher maximum takeoff weight (MTOW) and longer range. It has CFM International CFM56-7 series engines, a glass cockpit, and upgraded and redesigned interior configurations. The series includes four variants, the –600/–700/–800/–900, seating between 108 and 215 passengers. The 737NG's primary competition is the Airbus A320 family.
As of January 2026, a total of 7,136 737NG aircraft had been ordered, of which 7,120 had been delivered, with remaining orders for two -800, and 14 -800A variants. The most-ordered variant is the 737-800, with 4,991 commercial, 191 military, and 23 corporate, or a total of 5,205 aircraft. Boeing stopped assembling commercial 737NGs in 2019 and made the final deliveries in January 2020. The 737NG is superseded by the fourth generation 737 MAX, introduced in 2017.