The calculated distance (air line) between Aken and Halle (Saale) is approximately 26 miles respectively 42 kilometers.
By car or train, the actual journey to Halle (Saale) is certainly longer, as only the direct route (as the crow flies) between Aken and Halle (Saale) has been calculated here.
Air line (approximately)
42 kilometers
22 nautical miles