The calculated distance (air line) between Wülflingen (Kreis 6) and Zürich (Kreis 9) is approximately 13 miles respectively 21 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 Wülflingen (Kreis 6) and Zürich (Kreis 9) has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles