Besides operating as an independent air carrier, this second version of Pioneer also provided feeder connecting flight services on behalf of Continental Airlines as a  Continental Commuter air carrier at the Denver airport (DEN) via a code sharing agreement with Continental from 1983 through 1986.
Pioneer operated on its own, but it also offered connecting flights between Denver International Airport and other regional airports as part of a partnership with Continental Airlines that lasted from 1983 through 1986.