The calculated distance (air line) between Al Ḩudaydah and Al Bayda is approximately 184 miles respectively 296 kilometers.
By car or train, the actual journey to Al Bayda is certainly longer, as only the direct route (as the crow flies) between Al Ḩudaydah and Al Bayda has been calculated here.
Air line (approximately)
296 kilometers
160 nautical miles