The calculated distance (air line) between Omīdīyeh and Ash Shāmīyah is approximately 143 miles respectively 230 kilometers.
By car or train, the actual journey to Ash Shāmīyah is certainly longer, as only the direct route (as the crow flies) between Omīdīyeh and Ash Shāmīyah has been calculated here.
Air line (approximately)
230 kilometers
124 nautical miles