The calculated distance (air line) between Al Faḩāḩīl and Ar Riqqah is approximately 5 miles respectively 8 kilometers.
By car or train, the actual journey to Ar Riqqah is certainly longer, as only the direct route (as the crow flies) between Al Faḩāḩīl and Ar Riqqah has been calculated here.
Air line (approximately)
8 kilometers
4 nautical miles