The calculated distance (air line) between Frankfurt am Main and Bad Neustadt an der Saale is approximately 69 miles respectively 111 kilometers.
By car or train, the actual journey to Bad Neustadt an der Saale is certainly longer, as only the direct route (as the crow flies) between Frankfurt am Main and Bad Neustadt an der Saale has been calculated here.
Air line (approximately)
111 kilometers
60 nautical miles