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