The calculated distance (air line) between Damietta and Sirs al Layyānah is approximately 84 miles respectively 135 kilometers.
By car or train, the actual journey to Sirs al Layyānah is certainly longer, as only the direct route (as the crow flies) between Damietta and Sirs al Layyānah has been calculated here.
Air line (approximately)
135 kilometers
73 nautical miles