The A320 family was developed to compete with the 737 Classics (-300/-400/-500) and the McDonnell Douglas MD-80/90 series, and has since faced challenges from the Boeing 737 Next Generation (-600/-700/-800/-900) and the 717 during its two decades in service.
A320 family dikembangkan untuk bersaing dengan Boeing 737 Classics (-300/-400/-500) dan McDonnell Douglas seri MD-80/90, dan sejak saat itu menghadapi tantangan dari Boeing 737 Next Generation (-600/-700/-800/-900) dan Boeing 717 selama dua dekade pelayanannya.