The calculated distance (air line) between Al Kūt and Darreh Shahr is approximately 101 miles respectively 162 kilometers.
By car or train, the actual journey to Darreh Shahr is certainly longer, as only the direct route (as the crow flies) between Al Kūt and Darreh Shahr has been calculated here.
Air line (approximately)
162 kilometers
87 nautical miles