Boeing 737 Next Generation
| Boeing 737 Next Generation | |
|---|---|
 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 | 7,123 as of June 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 Coulson 737 Fireliner |
Developed into | Boeing 737 MAX |
The Boeing 737 Next Generation, commonly abbreviated as 737NG, or 737 Next Gen, is a twin-engined 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 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 June 2026, a total of 7,159 737NG aircraft had been ordered, of which 7,123 had been delivered, with remaining orders for two -800, and 34 -800A variants. The most-ordered variant is the 737-800, with 4,991 commercial, 224 military, and 23 corporate, or a total of 5,238 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 The 737NG is superseded by the fourth-generation 737 MAX, introduced in 2017.