The calculated distance (air line) between Spreitenbach and Zürich (Kreis 11) is approximately 7 miles respectively 12 kilometers.
By car or train, the actual journey to Zürich (Kreis 11) is certainly longer, as only the direct route (as the crow flies) between Spreitenbach and Zürich (Kreis 11) has been calculated here.
Air line (approximately)
12 kilometers
6 nautical miles