The calculated distance (air line) between Wallisellen / Wallisellen-Ost and Thun is approximately 65 miles respectively 104 kilometers.
By car or train, the actual journey to Thun is certainly longer, as only the direct route (as the crow flies) between Wallisellen / Wallisellen-Ost and Thun has been calculated here.
Air line (approximately)
104 kilometers
56 nautical miles