Are there nonstop flights from Basel / Mulhouse (BSL) to Firenze (FLR)?

No. The fastest connection is via Nice, about 1h 54m of total flying time.

What is the fastest connection from Basel / Mulhouse (BSL) to Firenze (FLR)?

via Nice ≈ 1h 54m, via Munich ≈ 1h 59m, via Rome ≈ 2h 10m (estimated flying time, excluding layovers).

from 12,000 JAL miles (economy, one way, based on the published award charts).

EuroAirport Basel–Mulhouse–Freiburg (BSL) to Florence Airport, Peretola (FLR)・509 km

No nonstop flights. The fastest connection is via Nice (NCE), about 1h 54m of flying time (layover not included).

With milesJAL 12,000 miles+ (via CDG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

10 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.