The calculated distance (air line) between Caesarea and Rishon LeTsiyyon is approximately 38 miles respectively 62 kilometers.
By car or train, the actual journey to Rishon LeTsiyyon is certainly longer, as only the direct route (as the crow flies) between Caesarea and Rishon LeTsiyyon has been calculated here.
Air line (approximately)
62 kilometers
33 nautical miles