The calculated distance (air line) between Kafr Kannā and Kiryat Gat is approximately 86 miles respectively 138 kilometers.
By car or train, the actual journey to Kiryat Gat is certainly longer, as only the direct route (as the crow flies) between Kafr Kannā and Kiryat Gat has been calculated here.
Air line (approximately)
138 kilometers
74 nautical miles