FILE - In this file photo taken June 13, 2010, a Spirit Airlines airplane sits on the tarmac at Fort Lauderdale-Hollywood International Airport in Fort Lauderdale, Fla. Spirit, a low-fare, high-fees carrier with a clientele of mostly leisure travelers, had by far the worst on-time performance in June 2015 among 14 airlines tracked in a government report released Tuesday, Aug. 11, 2015. Only 49.9 percent of its flights arrived within 15 minutes of schedule, which is the government's definition of being on time. (AP Photo/Lynne Sladky, File)