The calculated distance (air line) between Zürich (Kreis 3) / Friesenberg and Wil is approximately 26 miles respectively 42 kilometers.
By car or train, the actual journey to Wil is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 3) / Friesenberg and Wil has been calculated here.
Air line (approximately)
42 kilometers
23 nautical miles