The calculated distance (air line) between Linkenheim-Hochstetten and Duisburg is approximately 175 miles respectively 281 kilometers.
By car or train, the actual journey to Duisburg is certainly longer, as only the direct route (as the crow flies) between Linkenheim-Hochstetten and Duisburg has been calculated here.
Air line (approximately)
281 kilometers
152 nautical miles