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