The calculated distance (air line) between Comblain-au-Pont and La Louvière is approximately 61 miles respectively 98 kilometers.
By car or train, the actual journey to La Louvière is certainly longer, as only the direct route (as the crow flies) between Comblain-au-Pont and La Louvière has been calculated here.
Air line (approximately)
98 kilometers
53 nautical miles