The calculated distance (air line) between Ismailia and Kafr ad Dawwār is approximately 132 miles respectively 213 kilometers.
By car or train, the actual journey to Kafr ad Dawwār is certainly longer, as only the direct route (as the crow flies) between Ismailia and Kafr ad Dawwār has been calculated here.
Air line (approximately)
213 kilometers
115 nautical miles