The calculated distance (air line) between Duisburg and Lys-lez-Lannoy is approximately 163 miles respectively 262 kilometers.
By car or train, the actual journey to Lys-lez-Lannoy is certainly longer, as only the direct route (as the crow flies) between Duisburg and Lys-lez-Lannoy has been calculated here.
Air line (approximately)
262 kilometers
141 nautical miles