United Airlines adds direct flight between SFO and Central Coast

United Airlines on Friday announced new regional service from Santa Maria (SMX) to San Francisco, Los Angeles and Denver. The carrier also said it will start nonstop daily seasonal service between San Francisco International Airport and Milwaukee's Mitchell International Airport (MKE). Santa Maria, a city on the Central Coast in northern Santa Barbara County and a short distance for Vandenberg Air Force Base, will get the new daily service to three United hubs starting June 4. Tickets will go…