The calculated distance (air line) between Dayr Sāmit and Jabālyā is approximately 29 miles respectively 47 kilometers.
By car or train, the actual journey to Jabālyā is certainly longer, as only the direct route (as the crow flies) between Dayr Sāmit and Jabālyā has been calculated here.
Air line (approximately)
47 kilometers
25 nautical miles