The calculated distance (air line) between Ar Rābiyah and Omīdīyeh is approximately 147 miles respectively 236 kilometers.
By car or train, the actual journey to Omīdīyeh is certainly longer, as only the direct route (as the crow flies) between Ar Rābiyah and Omīdīyeh has been calculated here.
Air line (approximately)
236 kilometers
127 nautical miles