The calculated distance (air line) between Kiryat Gat and Umm el Faḥm is approximately 67 miles respectively 107 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 Kiryat Gat and Umm el Faḥm has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles