The calculated distance (air line) between Antiguo Cuscatlán and Soyapango is approximately 8 miles respectively 13 kilometers.
By car or train, the actual journey to Soyapango is certainly longer, as only the direct route (as the crow flies) between Antiguo Cuscatlán and Soyapango has been calculated here.
Air line (approximately)
13 kilometers
7 nautical miles