The calculated distance (air line) between Kafr Kannā and Umm el Faḥm is approximately 19 miles respectively 31 kilometers.
By car or train, the actual journey to Umm el Faḥm is certainly longer, as only the direct route (as the crow flies) between Kafr Kannā and Umm el Faḥm has been calculated here.
Air line (approximately)
31 kilometers
17 nautical miles