The calculated distance (air line) between Devnya and Gorna Oryahovitsa is approximately 94 miles respectively 152 kilometers.
By car or train, the actual journey to Gorna Oryahovitsa is certainly longer, as only the direct route (as the crow flies) between Devnya and Gorna Oryahovitsa has been calculated here.
Air line (approximately)
152 kilometers
82 nautical miles