The calculated distance (air line) between Al ‘Ubaydīyah and As Samū‘ is approximately 26 miles respectively 41 kilometers.
By car or train, the actual journey to As Samū‘ is certainly longer, as only the direct route (as the crow flies) between Al ‘Ubaydīyah and As Samū‘ has been calculated here.
Air line (approximately)
41 kilometers
22 nautical miles