Passenger traffic at Southwest Florida International Airport (www.flylcpa.com) during May totaled 576,713 passengers, an increase of 8.4 percent compared with May 2012. Year-to-date, passenger traffic is up 6.7 percent from the same period last year. The traffic leader in May was Delta, with 136,108 passengers traveling to and from Fort Myers. Rounding out the top five airlines were AirTran (98,303), JetBlue (67,385), Southwest (60,907) and US Airways (56,449).