Starting in December, Sprit Airlines is coming to JAX. https://www.bizjournals.com/jacksonville/news/2018/09/19/new-airline-will-take-off-from-jacksonville.html (https://www.bizjournals.com/jacksonville/news/2018/09/19/new-airline-will-take-off-from-jacksonville.html)
Yes, the same airline that is one of the world's worst, according to TripAdvisor! https://www.telegraph.co.uk/travel/news/best-and-worst-airlines-tripadvisor-rankings/ (https://www.telegraph.co.uk/travel/news/best-and-worst-airlines-tripadvisor-rankings/) ::)
They're replacing Silver.
While both Florida-based airlines, their routes won't overlap. Silver flew to Tampa with seasonal flights to Marsh Harbour. Spirit will fly daily to Chicago and Detroit.