The calculated distance (air line) between Khorramabad and Fereydūnshahr is approximately 109 miles respectively 175 kilometers.
By car or train, the actual journey to Fereydūnshahr is certainly longer, as only the direct route (as the crow flies) between Khorramabad and Fereydūnshahr has been calculated here.
Air line (approximately)
175 kilometers
94 nautical miles