The calculated distance (air line) between Villebon-sur-Yvette and Reims is approximately 90 miles respectively 145 kilometers.
By car or train, the actual journey to Reims is certainly longer, as only the direct route (as the crow flies) between Villebon-sur-Yvette and Reims has been calculated here.
Air line (approximately)
145 kilometers
78 nautical miles