The calculated distance (air line) between Sha‘av and Umm el Faḥm is approximately 26 miles respectively 42 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 Sha‘av and Umm el Faḥm has been calculated here.
Air line (approximately)
42 kilometers
23 nautical miles