The calculated distance (air line) between Ascona and Zürich (Kreis 10) is approximately 88 miles respectively 141 kilometers.
By car or train, the actual journey to Zürich (Kreis 10) is certainly longer, as only the direct route (as the crow flies) between Ascona and Zürich (Kreis 10) has been calculated here.
Air line (approximately)
141 kilometers
76 nautical miles