Continental Airlines began flights in 1980 when this air carrier was operating a hub at Denver and was serving Casper with Boeing 727-200 and Douglas DC-9-10 jetliners. Continental ceased mainline flights in 1985 and turned their respective services over to regional airline partners which operated code sharing flights as Continental Express with various turboprop aircraft types. Continental Express service was operated by Pioneer Airlines (1985–1986), and Trans-Colorado Airlines (1986) with Fairchild Swearingen Metroliner aircraft. Continental reinstated mainline service on the Casper–Denver route for a short time in 1986–1987 then Continental Express service returned by Rocky Mountain Airways (1987–1991), and Britt Airways (1991–1994) with Beechcraft 1900C and ATR-42 aircraft. Final Continental representation was by GP Express (1994–1996) with Beechcraft 1900C aircraft. Continental then ended all hub operations at Denver and ceased all service to Casper. Prior to becoming a Continental Express air carrier in 1987, Rocky Mountain Airways served Casper from 1983 through 1985 as an independent airline with de Havilland Canada DHC-7 Dash 7 turboprops.