| Southport to Noventa Vicentina | 868.91 mi (1,398.37 km) |
| Southport to Novi di Modena | 868.28 mi (1,397.37 km) |
| Southport to Novi Ligure | 810.58 mi (1,304.51 km) |
| Southport to Nuoro | 1,085.88 mi (1,747.55 km) |
| Southport to Occhiobello | 888.88 mi (1,430.52 km) |
| Southport to Oderzo | 877.06 mi (1,411.49 km) |
| Southport to Oggiono | 772.50 mi (1,243.21 km) |
| Southport to Olbia | 1,053.64 mi (1,695.66 km) |
| Southport to Oleggio | 760.06 mi (1,223.20 km) |
| Southport to Olgiate Comasco | 760.51 mi (1,223.92 km) |
| Southport to Olgiate Olona | 765.90 mi (1,232.60 km) |
| Southport to Omegna | 738.26 mi (1,188.12 km) |
| Southport to Opera | 789.49 mi (1,270.57 km) |
| Southport to Oppeano | 856.49 mi (1,378.39 km) |
| Southport to Orbassano | 761.06 mi (1,224.81 km) |
