The calculated distance (air line) between Šoštanj and Šentilj v Slov. Goricah is approximately 35 miles respectively 57 kilometers.
By car or train, the actual journey to Šentilj v Slov. Goricah is certainly longer, as only the direct route (as the crow flies) between Šoštanj and Šentilj v Slov. Goricah has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles