| Sankt Gallen to Noventa Vicentina | 180.31 mi (290.17 km) |
| Sankt Gallen to Novi di Modena | 189.57 mi (305.08 km) |
| Sankt Gallen to Novi Ligure | 186.25 mi (299.75 km) |
| Sankt Gallen to Nuoro | 491.08 mi (790.32 km) |
| Sankt Gallen to Occhiobello | 202.67 mi (326.17 km) |
| Sankt Gallen to Oderzo | 186.68 mi (300.43 km) |
| Sankt Gallen to Oggiono | 113.38 mi (182.47 km) |
| Sankt Gallen to Olbia | 449.67 mi (723.67 km) |
| Sankt Gallen to Oleggio | 130.83 mi (210.54 km) |
| Sankt Gallen to Olgiate Comasco | 114.99 mi (185.05 km) |
| Sankt Gallen to Olgiate Olona | 125.89 mi (202.60 km) |
| Sankt Gallen to Omegna | 116.19 mi (187.00 km) |
| Sankt Gallen to Opera | 141.20 mi (227.24 km) |
| Sankt Gallen to Oppeano | 170.31 mi (274.09 km) |
| Sankt Gallen to Orbassano | 188.60 mi (303.51 km) |
