Are there nonstop flights from New York (JFK) to Saint George's (GND)?

Yes. JetBlue Airways fly this route. Flight time is about 4h 30m.

What is the fastest connection from New York (JFK) to Saint George's (GND)?

via Osbourn ≈ 5h 2m, via Kingstown ≈ 5h 3m, via Vieux Fort ≈ 5h 4m (estimated flying time, excluding layovers).

from 23,000 JAL miles (economy, one way, based on the published award charts).

John F. Kennedy International Airport (JFK) to Maurice Bishop International Airport (GND)・3,393 km

Nonstop flights available (1 airline). Flight time about 4h 30m. Nonstop return flights also operate.

With milesJAL 23,000 miles+ (via CLT)Economy, one way, estimate. Tap a connection for miles by cabin.

10 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.