The calculated distance (air line) between Driebergen-Rijsenburg and Maastricht is approximately 85 miles respectively 137 kilometers.
By car or train, the actual journey to Maastricht is certainly longer, as only the direct route (as the crow flies) between Driebergen-Rijsenburg and Maastricht has been calculated here.
Air line (approximately)
137 kilometers
74 nautical miles