The calculated distance (air line) between Guazapa and Antiguo Cuscatlán is approximately 16 miles respectively 25 kilometers.
By car or train, the actual journey to Antiguo Cuscatlán is certainly longer, as only the direct route (as the crow flies) between Guazapa and Antiguo Cuscatlán has been calculated here.
Air line (approximately)
25 kilometers
14 nautical miles