The calculated distance (air line) between Tsur Itshak and Kfar Saba is approximately 7 miles respectively 11 kilometers.
By car or train, the actual journey to Kfar Saba is certainly longer, as only the direct route (as the crow flies) between Tsur Itshak and Kfar Saba has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles