The calculated distance (air line) between Baytūnyā and Bayt Ḩānūn is approximately 45 miles respectively 72 kilometers.
By car or train, the actual journey to Bayt Ḩānūn is certainly longer, as only the direct route (as the crow flies) between Baytūnyā and Bayt Ḩānūn has been calculated here.
Air line (approximately)
72 kilometers
39 nautical miles