The calculated distance (air line) between San Antonio Aguas Calientes and Amatitlán is approximately 11 miles respectively 17 kilometers.
By car or train, the actual journey to Amatitlán is certainly longer, as only the direct route (as the crow flies) between San Antonio Aguas Calientes and Amatitlán has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles