The calculated distance (air line) between San Antonio Aguas Calientes and Chiquimula is approximately 84 miles respectively 136 kilometers.
By car or train, the actual journey to Chiquimula is certainly longer, as only the direct route (as the crow flies) between San Antonio Aguas Calientes and Chiquimula has been calculated here.
Air line (approximately)
136 kilometers
73 nautical miles