The calculated distance (air line) between Birqīn and Khān Yūnis is approximately 95 miles respectively 153 kilometers.
By car or train, the actual journey to Khān Yūnis is certainly longer, as only the direct route (as the crow flies) between Birqīn and Khān Yūnis has been calculated here.
Air line (approximately)
153 kilometers
83 nautical miles