The calculated distance (air line) between Káto Achaḯa and Aigáleo is approximately 117 miles respectively 188 kilometers.
By car or train, the actual journey to Aigáleo is certainly longer, as only the direct route (as the crow flies) between Káto Achaḯa and Aigáleo has been calculated here.
Air line (approximately)
188 kilometers
101 nautical miles