Are there nonstop flights from Washington (IAD) to Kingston (KIN)?

No. The fastest connection is via Nassau, about 3h 45m of total flying time.

What is the fastest connection from Washington (IAD) to Kingston (KIN)?

via Nassau ≈ 3h 45m, via Montego Bay ≈ 3h 50m, via Fort Lauderdale ≈ 3h 51m (estimated flying time, excluding layovers).

from 30,000 ANA miles (economy, one way, based on the published award charts).

Washington Dulles International Airport (IAD) to Norman Manley International Airport (KIN)・2,337 km

No nonstop flights. The fastest connection is via Nassau (NAS), about 3h 45m of flying time (layover not included).

With milesANA 30,000 miles+ (via PTY)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

12 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.