The calculated distance (air line) between Edremit and Doğubayazıt is approximately 90 miles respectively 144 kilometers.
By car or train, the actual journey to Doğubayazıt is certainly longer, as only the direct route (as the crow flies) between Edremit and Doğubayazıt has been calculated here.
Air line (approximately)
144 kilometers
78 nautical miles