The calculated distance (air line) between Zermatt and Zürich (Kreis 9) is approximately 100 miles respectively 161 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 Zermatt and Zürich (Kreis 9) has been calculated here.
Air line (approximately)
161 kilometers
87 nautical miles