The calculated distance (air line) between ‘Alem T’ēna and Arba Minch is approximately 184 miles respectively 296 kilometers.
By car or train, the actual journey to Arba Minch is certainly longer, as only the direct route (as the crow flies) between ‘Alem T’ēna and Arba Minch has been calculated here.
Air line (approximately)
296 kilometers
160 nautical miles