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