The calculated distance (air line) between Aytos and Gorna Oryahovitsa is approximately 84 miles respectively 135 kilometers.
By car or train, the actual journey to Gorna Oryahovitsa is certainly longer, as only the direct route (as the crow flies) between Aytos and Gorna Oryahovitsa has been calculated here.
Air line (approximately)
135 kilometers
73 nautical miles