The calculated distance (air line) between Baytā al Fawqā and Janīn is approximately 22 miles respectively 35 kilometers.
By car or train, the actual journey to Janīn is certainly longer, as only the direct route (as the crow flies) between Baytā al Fawqā and Janīn has been calculated here.
Air line (approximately)
35 kilometers
19 nautical miles