The calculated distance (air line) between Artashat and Doğubayazıt is approximately 38 miles respectively 61 kilometers.
By car or train, the actual journey to Doğubayazıt is certainly longer, as only the direct route (as the crow flies) between Artashat and Doğubayazıt has been calculated here.
Air line (approximately)
61 kilometers
33 nautical miles