The calculated distance (air line) between Saint-Thibault-des-Vignes and Cergy-Pontoise is approximately 30 miles respectively 48 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-Thibault-des-Vignes and Cergy-Pontoise has been calculated here.
Air line (approximately)
48 kilometers
26 nautical miles