Here's a look at Southwest's latest state plane: Florida One. Yes, there's also a Maryland One, but the Florida One was just introduced today in Orlando. It's part of the airline's latest push into Florida gates, including new flights from BWI-Marshall Airport to Panama City Beach. Those flights begin just about a month from now - and Southwest is offering fares starting at $89 each way. In addition to PCB, all Florida fares are on sale through Monday, including Ft. Lauderdale, Jacksonville, Orlando, Tampa Bay and West Palm Beach. You have to travel Tues, Weds and Sat to get lowest fares. Good for travel May 11-June 1.