Are there nonstop flights from Tokyo (NRT) to Kailua-Kona (KOA)?

No. The fastest connection is via Honolulu, about 8h 32m of total flying time.

What is the fastest connection from Tokyo (NRT) to Kailua-Kona (KOA)?

via Honolulu ≈ 8h 32m, via Vancouver ≈ 15h, via Seattle ≈ 15h 5m (estimated flying time, excluding layovers).

from 21,500 ANA miles, from 25,000 JAL miles (economy, one way, based on the published award charts).

Narita International Airport (NRT) to Ellison Onizuka Kona International Airport at Keāhole (KOA)・6,393 km

No nonstop flights. The fastest connection is via Honolulu (HNL), about 8h 32m of flying time (layover not included).

With milesANA 21,500 miles+ (via YVR)JAL 25,000 miles+ (via HNL)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

8 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.