The calculated distance (air line) between San Andrés Itzapa and Coatepeque is approximately 68 miles respectively 110 kilometers.
By car or train, the actual journey to Coatepeque is certainly longer, as only the direct route (as the crow flies) between San Andrés Itzapa and Coatepeque has been calculated here.
Air line (approximately)
110 kilometers
59 nautical miles