The calculated distance (air line) between Mīt Salsīl and Ḩalwān is approximately 96 miles respectively 155 kilometers.
By car or train, the actual journey to Ḩalwān is certainly longer, as only the direct route (as the crow flies) between Mīt Salsīl and Ḩalwān has been calculated here.
Air line (approximately)
155 kilometers
84 nautical miles