The calculated distance (air line) between Port Said and Al Maḩallah al Kubrá is approximately 70 miles respectively 113 kilometers.
By car or train, the actual journey to Al Maḩallah al Kubrá is certainly longer, as only the direct route (as the crow flies) between Port Said and Al Maḩallah al Kubrá has been calculated here.
Air line (approximately)
113 kilometers
61 nautical miles