The calculated distance (air line) between Ahuachapán and Zacatecoluca is approximately 72 miles respectively 116 kilometers.
By car or train, the actual journey to Zacatecoluca is certainly longer, as only the direct route (as the crow flies) between Ahuachapán and Zacatecoluca has been calculated here.
Air line (approximately)
116 kilometers
62 nautical miles