The calculated distance (air line) between Idhnā and Bayt Ḩanīnā is approximately 24 miles respectively 38 kilometers.
By car or train, the actual journey to Bayt Ḩanīnā is certainly longer, as only the direct route (as the crow flies) between Idhnā and Bayt Ḩanīnā has been calculated here.
Air line (approximately)
38 kilometers
21 nautical miles