The calculated distance (air line) between San Nicolás de Bari and Cienfuegos is approximately 103 miles respectively 166 kilometers.
By car or train, the actual journey to Cienfuegos is certainly longer, as only the direct route (as the crow flies) between San Nicolás de Bari and Cienfuegos has been calculated here.
Air line (approximately)
166 kilometers
90 nautical miles