The calculated distance (air line) between Santa Lucía Cotzumalguapa and Patzún is approximately 24 miles respectively 39 kilometers.
By car or train, the actual journey to Patzún is certainly longer, as only the direct route (as the crow flies) between Santa Lucía Cotzumalguapa and Patzún has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles