The calculated distance (air line) between Le Plessis-Bouchard and Cergy-Pontoise is approximately 8 miles respectively 12 kilometers.
By car or train, the actual journey to Cergy-Pontoise is certainly longer, as only the direct route (as the crow flies) between Le Plessis-Bouchard and Cergy-Pontoise has been calculated here.
Air line (approximately)
12 kilometers
7 nautical miles