The calculated distance (air line) between Villiers-sur-Marne and Cergy-Pontoise is approximately 26 miles respectively 41 kilometers.
By car or train, the actual journey to Cergy-Pontoise is certainly longer, as only the direct route (as the crow flies) between Villiers-sur-Marne and Cergy-Pontoise has been calculated here.
Air line (approximately)
41 kilometers
22 nautical miles