The calculated distance (air line) between Le Plessis-Bouchard and Bessancourt is approximately 3 miles respectively 5 kilometers.
By car or train, the actual journey to Bessancourt is certainly longer, as only the direct route (as the crow flies) between Le Plessis-Bouchard and Bessancourt has been calculated here.
Air line (approximately)
5 kilometers
2 nautical miles