The calculated distance (air line) between Cairo and Dumyāţ al Jadīdah is approximately 98 miles respectively 158 kilometers.
By car or train, the actual journey to Dumyāţ al Jadīdah is certainly longer, as only the direct route (as the crow flies) between Cairo and Dumyāţ al Jadīdah has been calculated here.
Air line (approximately)
158 kilometers
85 nautical miles