The calculated distance (air line) between Al Qāhirah al Jadīdah and Sirs al Layyānah is approximately 40 miles respectively 64 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 Al Qāhirah al Jadīdah and Sirs al Layyānah has been calculated here.
Air line (approximately)
64 kilometers
34 nautical miles