The calculated distance (air line) between Comblain-au-Pont and Etterbeek is approximately 58 miles respectively 93 kilometers.
By car or train, the actual journey to Etterbeek is certainly longer, as only the direct route (as the crow flies) between Comblain-au-Pont and Etterbeek has been calculated here.
Air line (approximately)
93 kilometers
50 nautical miles