The calculated distance (air line) between Ajdovščina and Slovenska Bistrica is approximately 87 miles respectively 140 kilometers.
By car or train, the actual journey to Slovenska Bistrica is certainly longer, as only the direct route (as the crow flies) between Ajdovščina and Slovenska Bistrica has been calculated here.
Air line (approximately)
140 kilometers
76 nautical miles