The calculated distance (air line) between Al Ḩudaydah and Dhī as Sufāl is approximately 102 miles respectively 165 kilometers.
By car or train, the actual journey to Dhī as Sufāl is certainly longer, as only the direct route (as the crow flies) between Al Ḩudaydah and Dhī as Sufāl has been calculated here.
Air line (approximately)
165 kilometers
89 nautical miles