The calculated distance (air line) between Al Mawşil al Jadīdah and Ḩalabja is approximately 180 miles respectively 290 kilometers.
By car or train, the actual journey to Ḩalabja is certainly longer, as only the direct route (as the crow flies) between Al Mawşil al Jadīdah and Ḩalabja has been calculated here.
Air line (approximately)
290 kilometers
156 nautical miles