 Southwest Airways changed its name to Pacific Air Lines which later served Paso Robles with Fairchild F-27s to Los Angeles, San Francisco and other California cities.In 1968 Pacific Air Lines merged with Bonanza Air Lines and West Coast Airlines to form Air West which continued to serve the airport with F-27s.In 1970 Air West was renamed Hughes Airwest which continued to serve Paso Robles with F-27s until 1974.