At one point, Hughes Airwest also operated Fairchild F-27 turboprop aircraft to Las Vegas and Phoenix with continuing, no change of plane service to Salt Lake City (SLC). Hughes Airwest was then merged into Republic Airlines which continued to operate DC-9 jet flights into the airport. During the summer of 1982, Republic was operating two daily DC-9 flights nonstop to Las Vegas (LAS) as well as daily nonstop DC-9 service to Phoenix (PHX) and direct one stop service daily to Burbank (BUR). By the mid 1980s, Republic had ceased all service into the airport. Air West, the predecessor airline of Hughes Airwest, also operated Douglas DC-9 jets from the airport in addition to flying services with Fairchild F-27 turboprops. Bonanza Air Lines, which merged with Pacific Air Lines and West Coast Airlines to form Air West, flew from the airport prior to the Air West service and operated Fairchild F-27 turboprops as well with direct service to Phoenix and Salt Lake City with a daily round trip routing of Phoenix - Prescott, AZ - Grand Canyon Airport - Page, AZ - Cedar City, UT - Salt Lake City. Bonanza then expanded their F-27 propjet service with nonstop flights to Las Vegas and Phoenix. A 1966 Bonanza Air Lines print ad announced the air carrier's new service at the airport stating that Bonanza was "The only airline serving Grand Canyon" at the time. The airport was also served in the past by America West Airlines operating de Havilland Canada DHC-8 Dash 8 turboprop aircraft to Las Vegas and Phoenix. Alpha Air, a commuter airline based in California that operated as Trans World Express (TWE) flying Beechcraft 1900C turboprops via a code sharing agreement with Trans World Airlines (TWA), also provided service with nonstop flights to Los Angeles (LAX) or Burbank (BUR) with the latter service continuing on to LAX. Inland Empire Airlines, another California-based commuter air carrier, operated nonstop flights to Los Angeles as well with Swearingen Metro propjets. Cochise Airlines, a commuter air carrier based in Arizona, served the airport with de Havilland Canada DHC-6 Twin Otter and Swearingen Metro turboprops and also Cessna 402 prop aircraft with flights to Phoenix, Tucson and other destinations in Arizona. In 1999 Sunrise Airlines was flying daily nonstop service between Phoenix and the airport with Beechcraft 1900C turboprops.