The calculated distance (air line) between Ashkelon and Umm el Faḥm is approximately 68 miles respectively 109 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 Ashkelon and Umm el Faḥm has been calculated here.
Air line (approximately)
109 kilometers
59 nautical miles