The calculated distance (air line) between Khoshk Bījār and Ardabīl is approximately 100 miles respectively 161 kilometers.
By car or train, the actual journey to Ardabīl is certainly longer, as only the direct route (as the crow flies) between Khoshk Bījār and Ardabīl has been calculated here.
Air line (approximately)
161 kilometers
87 nautical miles