The calculated distance (air line) between Kafr Sa‘d and Banī Suwayf is approximately 161 miles respectively 260 kilometers.
By car or train, the actual journey to Banī Suwayf is certainly longer, as only the direct route (as the crow flies) between Kafr Sa‘d and Banī Suwayf has been calculated here.
Air line (approximately)
260 kilometers
140 nautical miles