The calculated distance (air line) between Acre and Umm el Faḥm is approximately 29 miles respectively 46 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 Acre and Umm el Faḥm has been calculated here.
Air line (approximately)
46 kilometers
25 nautical miles