The calculated distance (air line) between San Juan Sacatepéquez and Amatitlán is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Amatitlán is certainly longer, as only the direct route (as the crow flies) between San Juan Sacatepéquez and Amatitlán has been calculated here.
Air line (approximately)
27 kilometers
15 nautical miles