Are there nonstop flights from Okinawa (Naha) (OKA) to Nagasaki (NGS)?

No. The fastest connection is via Osaka, about 3h of total flying time.

What is the fastest connection from Okinawa (Naha) (OKA) to Nagasaki (NGS)?

via Osaka ≈ 3h, via Kobe ≈ 3h 1m, via Osaka ≈ 3h 5m (estimated flying time, excluding layovers).

from 14,000 ANA miles, from 15,000 JAL miles (economy, one way, based on the published award charts).

Naha International Airport (OKA) to Nagasaki Airport (NGS)・779 km

No nonstop flights. The fastest connection is via Osaka (KIX), about 3h of flying time (layover not included).

With milesANA 14,000 miles+ (via ITM)JAL 15,000 miles+ (via ICN)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

5 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.