The calculated distance (air line) between Villars-sur-Glâne and Sankt Gallen is approximately 115 miles respectively 185 kilometers.
By car or train, the actual journey to Sankt Gallen is certainly longer, as only the direct route (as the crow flies) between Villars-sur-Glâne and Sankt Gallen has been calculated here.
Air line (approximately)
185 kilometers
100 nautical miles