The calculated distance (air line) between Saint-Valery-en-Caux and Cergy-Pontoise is approximately 83 miles respectively 134 kilometers.
By car or train, the actual journey to Cergy-Pontoise is certainly longer, as only the direct route (as the crow flies) between Saint-Valery-en-Caux and Cergy-Pontoise has been calculated here.
Air line (approximately)
134 kilometers
72 nautical miles