The calculated distance (air line) between San Lucas Tolimán and Amatitlán is approximately 35 miles respectively 57 kilometers.
By car or train, the actual journey to Amatitlán is certainly longer, as only the direct route (as the crow flies) between San Lucas Tolimán and Amatitlán has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles