Tickets at this price are available on select dates starting in early February through April 11, 2019, with some spring break travel dates still open.
As an example, searching on Jetblue's site, I found seats departing JFK on Thursday, March 14 and returning from GCM on Wednesday, March 20, 2019.
Are you following our dedicated NYC deal feed on twitter? If not, make sure to add @awddeaksnyc to never miss out on an airfare deal again.
Need a beachside view in Grand Cayman? Here's what's on sale for the mentioned dates from Hotelwatchdog.