The calculated distance (air line) between Janūb as Surrah and Ar Riqqah is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to Ar Riqqah is certainly longer, as only the direct route (as the crow flies) between Janūb as Surrah and Ar Riqqah has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles