The calculated distance (air line) between Shāhīn Dezh and Ḩalabja is approximately 109 miles respectively 175 kilometers.
By car or train, the actual journey to Ḩalabja is certainly longer, as only the direct route (as the crow flies) between Shāhīn Dezh and Ḩalabja has been calculated here.
Air line (approximately)
175 kilometers
94 nautical miles