Are there nonstop flights from Bozeman (BZN) to Louisville (SDF)?

No. The fastest connection is via Chicago, about 3h 47m of total flying time.

What is the fastest connection from Bozeman (BZN) to Louisville (SDF)?

via Chicago ≈ 3h 47m, via Chicago ≈ 3h 47m, via Minneapolis ≈ 3h 48m (estimated flying time, excluding layovers).

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

Bozeman Yellowstone International Airport (BZN) to Louisville Muhammad Ali International Airport (SDF)・2,253 km

No nonstop flights. The fastest connection is via Chicago (MDW), about 3h 47m of flying time (layover not included).

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

None.

18 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.