The calculated distance (air line) between Lyss and Zürich (Kreis 7) is approximately 63 miles respectively 102 kilometers.
By car or train, the actual journey to Zürich (Kreis 7) is certainly longer, as only the direct route (as the crow flies) between Lyss and Zürich (Kreis 7) has been calculated here.
Air line (approximately)
102 kilometers
55 nautical miles