Are there nonstop flights from Bangkok (BKK) to Firenze (FLR)?

No. The fastest connection is via Vienna, about 11h 42m of total flying time.

What is the fastest connection from Bangkok (BKK) to Firenze (FLR)?

via Vienna ≈ 11h 42m, via Rome ≈ 11h 44m, via Munich ≈ 11h 57m (estimated flying time, excluding layovers).

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

Suvarnabhumi Airport (BKK) to Florence Airport, Peretola (FLR)・8,924 km

No nonstop flights. The fastest connection is via Vienna (VIE), about 11h 42m of flying time (layover not included).

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

None.

15 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.