The calculated distance (air line) between Smolyan and Gorna Oryahovitsa is approximately 119 miles respectively 191 kilometers.
By car or train, the actual journey to Gorna Oryahovitsa is certainly longer, as only the direct route (as the crow flies) between Smolyan and Gorna Oryahovitsa has been calculated here.
Air line (approximately)
191 kilometers
103 nautical miles