The calculated distance (air line) between Doğubayazıt and Taşlıçay is approximately 39 miles respectively 62 kilometers.
By car or train, the actual journey to Taşlıçay is certainly longer, as only the direct route (as the crow flies) between Doğubayazıt and Taşlıçay has been calculated here.
Air line (approximately)
62 kilometers
33 nautical miles