The calculated distance (air line) between Cuscatancingo and Zacatecoluca is approximately 26 miles respectively 42 kilometers.
By car or train, the actual journey to Zacatecoluca is certainly longer, as only the direct route (as the crow flies) between Cuscatancingo and Zacatecoluca has been calculated here.
Air line (approximately)
42 kilometers
23 nautical miles