The calculated distance (air line) between Santa Lucía Cotzumalguapa and Zacapa is approximately 109 miles respectively 176 kilometers.
By car or train, the actual journey to Zacapa is certainly longer, as only the direct route (as the crow flies) between Santa Lucía Cotzumalguapa and Zacapa has been calculated here.
Air line (approximately)
176 kilometers
95 nautical miles