The calculated distance (air line) between Ottendorf-Okrilla and Sebnitz is approximately 24 miles respectively 39 kilometers.
By car or train, the actual journey to Sebnitz is certainly longer, as only the direct route (as the crow flies) between Ottendorf-Okrilla and Sebnitz has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles