| Frauenfeld to Noventa Vicentina | 200.63 mi (322.88 km) |
| Frauenfeld to Novi di Modena | 206.96 mi (333.08 km) |
| Frauenfeld to Novi Ligure | 192.90 mi (310.45 km) |
| Frauenfeld to Nuoro | 500.24 mi (805.05 km) |
| Frauenfeld to Occhiobello | 222.23 mi (357.64 km) |
| Frauenfeld to Oderzo | 209.64 mi (337.38 km) |
| Frauenfeld to Oggiono | 123.92 mi (199.43 km) |
| Frauenfeld to Olbia | 459.27 mi (739.13 km) |
| Frauenfeld to Oleggio | 135.33 mi (217.79 km) |
| Frauenfeld to Olgiate Comasco | 122.11 mi (196.51 km) |
| Frauenfeld to Olgiate Olona | 132.43 mi (213.13 km) |
| Frauenfeld to Omegna | 117.85 mi (189.67 km) |
| Frauenfeld to Opera | 150.46 mi (242.14 km) |
| Frauenfeld to Oppeano | 189.70 mi (305.29 km) |
| Frauenfeld to Orbassano | 187.35 mi (301.51 km) |
