Are there nonstop flights from Naples (NAP) to Bangkok (BKK)?

No. The fastest connection is via Istanbul, about 11h 15m of total flying time.

What is the fastest connection from Naples (NAP) to Bangkok (BKK)?

via Istanbul ≈ 11h 15m, via Sofia ≈ 11h 16m, via Tel Aviv ≈ 11h 37m (estimated flying time, excluding layovers).

from 29,500 ANA miles, from 45,000 JAL miles (economy, one way, based on the published award charts).

Naples International Airport (NAP) to Suvarnabhumi Airport (BKK)・8,723 km

No nonstop flights. The fastest connection is via Istanbul (IST), about 11h 15m of flying time (layover not included).

With milesANA 29,500 miles+ (via IST)JAL 45,000 miles+ (via HEL)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

22 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.