Are there nonstop flights from Panama City Beach (ECP) to Nashville (BNA)?

Yes. Southwest Airlines fly this route. Flight time is about 1h 16m.

What is the fastest connection from Panama City Beach (ECP) to Nashville (BNA)?

via Atlanta ≈ 1h 51m, via Charlotte ≈ 2h 27m, via Indianapolis ≈ 2h 42m (estimated flying time, excluding layovers).

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

Northwest Florida Beaches International Airport (ECP) to Nashville International Airport (BNA)・647 km

Nonstop flights available (1 airline). Flight time about 1h 16m. Nonstop return flights also operate.

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

5 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.