The calculated distance (air line) between Zafferana Etnea and Aci Castello is approximately 9 miles respectively 14 kilometers.
By car or train, the actual journey to Aci Castello is certainly longer, as only the direct route (as the crow flies) between Zafferana Etnea and Aci Castello has been calculated here.
Air line (approximately)
14 kilometers
8 nautical miles