The calculated distance (air line) between Ḩayy al Bunayyāt and Jarash is approximately 27 miles respectively 43 kilometers.
By car or train, the actual journey to Jarash is certainly longer, as only the direct route (as the crow flies) between Ḩayy al Bunayyāt and Jarash has been calculated here.
Air line (approximately)
43 kilometers
23 nautical miles