The McDonnell Douglas MD-80 is a family of twin-engine medium-range single-aisle commercial jet airliners. The MD-80 series were lengthened and updated from the DC-9. The airliner family can seat from 130 up to 172 passengers depending on variant and seating configuration. The MD-80 series was introduced into commercial service on October 10 1980 by Swissair. The series includes the MD-81 MD-82 MD-83 MD-87 and MD-88. These all have the same fuselage length except the shortened MD-87.
It is the successor of the McDonnell Douglas DC-9 ,
McDonnell Douglas MD-80 is the predecessor of the Boeing 717.McDonnell Douglas MD-90.