The calculated distance (air line) between Taiz and Bayt al Faqīh is approximately 80 miles respectively 128 kilometers.
By car or train, the actual journey to Bayt al Faqīh is certainly longer, as only the direct route (as the crow flies) between Taiz and Bayt al Faqīh has been calculated here.
Air line (approximately)
128 kilometers
69 nautical miles