Spirit Airlines is spicing up the San Francisco Bay Area by flying more of the brightest planes in the sky into Oakland (OAK). America’s fastest-growing airline starts service to and from Fort Lauderdale (FLL) April 1, making Spirit the only airline flying OAK to FLL nonstop. OAK is the Bay Area’s most centrally-located airport, making it the most convenient option for more than 3 million of the region’s 7.7 million residents. Spirit started Oakland service in 2011 with a single flight to Las Vegas (LAS) and grew to third place among Oakland’s largest carriers. The new Fort Lauderdale flight joins existing service to Chicago (ORD), Detroit (DTW), Houston (IAH) and Los Angeles (LAX), along with what’s become four daily flights to Las Vegas.