The calculated distance (air line) between Frutigen and Zürich (Kreis 9) is approximately 67 miles respectively 109 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 Frutigen and Zürich (Kreis 9) has been calculated here.
Air line (approximately)
109 kilometers
59 nautical miles