 Pacific, Air West and Hughes Airwest all listed San Luis Obispo in their timetables as being served via the Paso Robles Airport.Following the cessation of service by Hughes Airwest, San Luis Obispo-based Swift Aire Lines was the only airline serving Paso Robles in 1976 with nonstop flights from San Francisco (SFO) and San Jose (SJC) as well as direct flights from Los Angeles (LAX) with these latter flights making intermediate stops in both Santa Maria and San Luis Obispo with all service operated with de Havilland Heron commuter prop aircraft.Passenger flights returned to Paso Robles when SkyWest Airlines (Delta Connection) established a base at the airfield flying Embraer EMB-120 Brasilias and Fairchild Swearingen Metroliners to several California cities including Los Angeles, San Francisco and Fresno.