USA3000 AIRLINES seems to be on an ever-developing expansion plan just as its near namesake is still in Chapter 11. Only created as a charter airline in March 2000 and based at the quaintly named Newtown Sq, Pennsylvania, USA3000 operates 14 CFM-56 powered Airbus A320 with 168 seats in a single-class configuration. The airline recently announced new scheduled services from Chicago O'Hare, Detroit, Cleveland, Milwaukee, New York Newark and Saint Louis to various holiday destinations in the Caribbean.
http://www.usa3000airlines.com