In 1980 and 1981, Air Sierra was flying nonstop to Fresno (FAT) with continuing direct service to Lake Tahoe (TVL) with Piper Navajo twin prop aircraft. Also in 1981, Wings West Airlines operating as an independent commuter air carrier was operating nonstop flights to Santa Monica (SMO), Oakland (OAK) and Sacramento (SMF) with Cessna 402 twin prop aircraft.
The passage describes the airline operations of Air Sierra and Wings West Airlines during 1980 and 1981. It highlights their routes, aircraft types, and operating status as independent commuter airlines.