The calculated distance (air line) between Yeghegnadzor and Doğubayazıt is approximately 68 miles respectively 110 kilometers.
By car or train, the actual journey to Doğubayazıt is certainly longer, as only the direct route (as the crow flies) between Yeghegnadzor and Doğubayazıt has been calculated here.
Air line (approximately)
110 kilometers
59 nautical miles