The calculated distance (air line) between Damietta and Sumusţā al Waqf is approximately 182 miles respectively 292 kilometers.
By car or train, the actual journey to Sumusţā al Waqf is certainly longer, as only the direct route (as the crow flies) between Damietta and Sumusţā al Waqf has been calculated here.
Air line (approximately)
292 kilometers
158 nautical miles