The calculated distance (air line) between Dübendorf and Zürich (Kreis 9) is approximately 7 miles respectively 11 kilometers.
By car or train, the actual journey to Zürich (Kreis 9) is certainly longer, as only the direct route (as the crow flies) between Dübendorf and Zürich (Kreis 9) has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles