The calculated distance (air line) between Bussy-Saint-Georges and Cergy-Pontoise is approximately 31 miles respectively 51 kilometers.
By car or train, the actual journey to Cergy-Pontoise is certainly longer, as only the direct route (as the crow flies) between Bussy-Saint-Georges and Cergy-Pontoise has been calculated here.
Air line (approximately)
51 kilometers
27 nautical miles