The calculated distance (air line) between Versailles and Montigny-le-Bretonneux is approximately 5 miles respectively 8 kilometers.
By car or train, the actual journey to Montigny-le-Bretonneux is certainly longer, as only the direct route (as the crow flies) between Versailles and Montigny-le-Bretonneux has been calculated here.
Air line (approximately)
8 kilometers
5 nautical miles