The calculated distance (air line) between Gürpınar and Sancaktepe is approximately 32 miles respectively 52 kilometers.
By car or train, the actual journey to Sancaktepe is certainly longer, as only the direct route (as the crow flies) between Gürpınar and Sancaktepe has been calculated here.
Air line (approximately)
52 kilometers
28 nautical miles