The calculated distance (air line) between Ahuachapán and Quezaltepeque is approximately 39 miles respectively 63 kilometers.
By car or train, the actual journey to Quezaltepeque is certainly longer, as only the direct route (as the crow flies) between Ahuachapán and Quezaltepeque has been calculated here.
Air line (approximately)
63 kilometers
34 nautical miles