Southwest Airlines will add two new daily nonstop routes from San Antonio International Airport to Oakland, Calif., and Fort Lauderdale next July. According to San Antonio’s aviation director, Russ Handy, Oakland and Fort Lauderdale were considered high priorities under the city’s air service development plan. He said that about 34 percent of business travelers out of the airport land in destinations on the West Coast. Those travelers, he said, were asking for an option that gives them easy access to the Bay Area and Silicon Valley. And, said Handy, Fort Lauderdale is a vital connecting point to Latin America for leisure and business travel. The San Antonio airport has added 20 flights in the past 18 months, including many nonstop routes. The airport recorded its 15th consecutive month of growing passenger numbers in September, with more than 687,000 travelers that month. Southwest operates routes to 20 markets from San Antonio, according to David Harvey, the carrier’s managing director of business development.