The Boeing 767 is an American wide-body airliner developed and manufactured by Boeing Commercial Airplanes. The aircraft was launched as the 7X7 program on July 14, 1978, the prototype first flew on September 26, 1981, and it was certified on July 30, 1982. The initial 767-200 variant entered service on September 8, 1982, with United Airlines, and the extended-range 767-200ER in 1984. It was stretched into the 767-300 in October 1986, followed by the extended-range 767-300ER in 1988, the most popular variant. The 767-300F, a production freighter version, debuted in October 1995. It was stretched again into the 767-400ER from September 2000.Boeing 767A side/underneath view of a Boeing 767-300 in Delta Air Lines' white, blue, and red color during climbout. The main undercarriage doors are retracting.Boeing 767-300 of Delta Air Lines, the largest operator of the 767 as of 2023General informationTypeWide-body airlinerNational originUnited StatesManufacturerBoeing Commercial AirplanesStatusIn service; in cargo productionPrimary usersDelta Air LinesFedEx ExpressUPS AirlinesUnited AirlinesNumber built1,321 as of January 2025[1][2]HistoryManufactured1981–presentIntroduction dateSeptember 8, 1982 with United AirlinesFirst flightSeptember 26, 1981VariantsBoeing E-767Boeing KC-46 PegasusBoeing KC-767Northrop Grumman E-10 MC2ADesigned to complement the larger 747, it has a seven-abreast cross-section accommodating smaller LD2 ULD cargo containers. The 767 is Boeing's first wide-body twinjet, powered by General Electric CF6, Rolls-Royce RB211, or Pratt & Whitney JT9D turbofans. JT9D engines were eventually replaced by PW4000 engines. The aircraft has a conventional tail and a supercritical wing for reduced aerodynamic drag. Its two-crew glass