The calculated distance (air line) between Al Ḩazm and Al Ḩudaydah is approximately 154 miles respectively 247 kilometers.
By car or train, the actual journey to Al Ḩudaydah is certainly longer, as only the direct route (as the crow flies) between Al Ḩazm and Al Ḩudaydah has been calculated here.
Air line (approximately)
247 kilometers
134 nautical miles