The calculated distance (air line) between Kafr Kannā and Kfar Saba is approximately 47 miles respectively 76 kilometers.
By car or train, the actual journey to Kfar Saba is certainly longer, as only the direct route (as the crow flies) between Kafr Kannā and Kfar Saba has been calculated here.
Air line (approximately)
76 kilometers
41 nautical miles