The flight times for the JetBlue FLL-SXM non-stops change as of May 1. The new schedule is that the FLL-SXM flight times are dep 10:51 arr 13:57, and the return SXM-FLL flight times are now dep 14:57 arr 18:10. There are variations of a few minutes on the days which I spot-checked, but that's the general change.