The calculated distance (air line) between Ofaqim and Umm el Faḥm is approximately 89 miles respectively 143 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 Ofaqim and Umm el Faḥm has been calculated here.
Air line (approximately)
143 kilometers
77 nautical miles