How long is the flight to Grenada?
The below times are for non stop flight segments to Point Salines International Airport (GND). From John F Kennedy International Airport (JFK), the flight time is roughly 4 hours and 18 minutes. From Miami International Airport (MIA), the flight time is roughly 3 hours and 2 minutes. From Luis Munoz Marin International Airport (SJU), the flight time is roughly 1 hour and 59 minutes.
Please keep in mind that the above are time in the air; most travel sites will quote a ramp to ramp time which is about a 1/2 hour greater than the air time.