The calculated distance (air line) between Al ‘Ubaydīyah and Ḩalḩūl is approximately 15 miles respectively 23 kilometers.
By car or train, the actual journey to Ḩalḩūl is certainly longer, as only the direct route (as the crow flies) between Al ‘Ubaydīyah and Ḩalḩūl has been calculated here.
Air line (approximately)
23 kilometers
13 nautical miles