The calculated distance (air line) between Meung-sur-Loire and Cergy-Pontoise is approximately 85 miles respectively 137 kilometers.
By car or train, the actual journey to Cergy-Pontoise is certainly longer, as only the direct route (as the crow flies) between Meung-sur-Loire and Cergy-Pontoise has been calculated here.
Air line (approximately)
137 kilometers
74 nautical miles