The calculated distance (air line) between San Antonio Aguas Calientes and Coatepeque is approximately 73 miles respectively 118 kilometers.
By car or train, the actual journey to Coatepeque is certainly longer, as only the direct route (as the crow flies) between San Antonio Aguas Calientes and Coatepeque has been calculated here.
Air line (approximately)
118 kilometers
64 nautical miles