The calculated distance (air line) between Qiryat Yam and Kiryat Gat is approximately 88 miles respectively 141 kilometers.
By car or train, the actual journey to Kiryat Gat is certainly longer, as only the direct route (as the crow flies) between Qiryat Yam and Kiryat Gat has been calculated here.
Air line (approximately)
141 kilometers
76 nautical miles