The calculated distance (air line) between Bayt Yāfā and Wādī as Sīr is approximately 39 miles respectively 63 kilometers.
By car or train, the actual journey to Wādī as Sīr is certainly longer, as only the direct route (as the crow flies) between Bayt Yāfā and Wādī as Sīr has been calculated here.
Air line (approximately)
63 kilometers
34 nautical miles