The straight-line (great-circle) distance from New York City to Grand Cayman (Georgetown) is approximately 1,500 miles (2,415 km).
Flight Time: ~3 hours 45 minutes nonstop (multiple daily flights from JFK, EWR, LGA to GCM).
Geographic Context: The Cayman Islands are a British Overseas Territory in the western Caribbean, south of Cuba, northwest of Jamaica. New York is on the U.S. Northeast coast.
No ferry or cruise service connects directly; air is the only practical option.