The calculated distance (air line) between Al ‘Ubaydīyah and Jabālyā is approximately 49 miles respectively 79 kilometers.
By car or train, the actual journey to Jabālyā is certainly longer, as only the direct route (as the crow flies) between Al ‘Ubaydīyah and Jabālyā has been calculated here.
Air line (approximately)
79 kilometers
43 nautical miles