The calculated distance (air line) between Lyss and Zürich (Kreis 2) is approximately 60 miles respectively 96 kilometers.
By car or train, the actual journey to Zürich (Kreis 2) is certainly longer, as only the direct route (as the crow flies) between Lyss and Zürich (Kreis 2) has been calculated here.
Air line (approximately)
96 kilometers
52 nautical miles