The calculated distance (air line) between Thônex and Zürich (Kreis 7) is approximately 139 miles respectively 224 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 Thônex and Zürich (Kreis 7) has been calculated here.
Air line (approximately)
224 kilometers
121 nautical miles