The calculated distance (air line) between Ciego de Ávila and Cárdenas is approximately 177 miles respectively 284 kilometers.
By car or train, the actual journey to Cárdenas is certainly longer, as only the direct route (as the crow flies) between Ciego de Ávila and Cárdenas has been calculated here.
Air line (approximately)
284 kilometers
153 nautical miles