| Trecate to Noventa Vicentina | 136.33 mi (219.40 km) |
| Trecate to Novi di Modena | 111.99 mi (180.24 km) |
| Trecate to Novi Ligure | 46.65 mi (75.07 km) |
| Trecate to Nuoro | 354.82 mi (571.03 km) |
| Trecate to Occhiobello | 143.13 mi (230.35 km) |
| Trecate to Oderzo | 183.28 mi (294.96 km) |
| Trecate to Oggiono | 38.38 mi (61.77 km) |
| Trecate to Olbia | 314.44 mi (506.05 km) |
| Trecate to Oleggio | 12.49 mi (20.11 km) |
| Trecate to Olgiate Comasco | 26.68 mi (42.94 km) |
| Trecate to Olgiate Olona | 15.61 mi (25.12 km) |
| Trecate to Omegna | 34.54 mi (55.59 km) |
| Trecate to Opera | 23.70 mi (38.14 km) |
| Trecate to Oppeano | 119.28 mi (191.96 km) |
| Trecate to Orbassano | 65.24 mi (105.00 km) |
