The calculated distance (air line) between Tacuba and Antiguo Cuscatlán is approximately 48 miles respectively 78 kilometers.
By car or train, the actual journey to Antiguo Cuscatlán is certainly longer, as only the direct route (as the crow flies) between Tacuba and Antiguo Cuscatlán has been calculated here.
Air line (approximately)
78 kilometers
42 nautical miles