The calculated distance (air line) between Tallkayf and Oshnavīyeh is approximately 116 miles respectively 186 kilometers.
By car or train, the actual journey to Oshnavīyeh is certainly longer, as only the direct route (as the crow flies) between Tallkayf and Oshnavīyeh has been calculated here.
Air line (approximately)
186 kilometers
101 nautical miles