On the JetBlue website it says they are suspending all ticket sales to Grand Cayman.

The notice says:

“We are temporarily suspending sales for all JetBlue flights to/from Grand Cayman both online and over the phone. We anticipate this suspension will be short-term and hope to resume offering GCM flights again soon. As with all new international destinations, the application process is subject to government timelines, requirements, and approval. Please check back with us at a later date to book your GCM travel.”

The airline was due to offer direct flights between Grand Cayman and the cities of New York and Boston this November.