The calculated distance (air line) between Jaljūlya and Kiryat Gat is approximately 39 miles respectively 63 kilometers.
By car or train, the actual journey to Kiryat Gat is certainly longer, as only the direct route (as the crow flies) between Jaljūlya and Kiryat Gat has been calculated here.
Air line (approximately)
63 kilometers
34 nautical miles