| Seaham to Noventa Vicentina | 870.20 mi (1,400.44 km) |
| Seaham to Novi di Modena | 874.61 mi (1,407.54 km) |
| Seaham to Novi Ligure | 828.25 mi (1,332.94 km) |
| Seaham to Nuoro | 1,117.10 mi (1,797.80 km) |
| Seaham to Occhiobello | 891.87 mi (1,435.33 km) |
| Seaham to Oderzo | 871.27 mi (1,402.17 km) |
| Seaham to Oggiono | 781.79 mi (1,258.16 km) |
| Seaham to Olbia | 1,082.39 mi (1,741.94 km) |
| Seaham to Oleggio | 774.24 mi (1,246.02 km) |
| Seaham to Olgiate Comasco | 771.85 mi (1,242.17 km) |
| Seaham to Olgiate Olona | 778.53 mi (1,252.92 km) |
| Seaham to Omegna | 752.14 mi (1,210.46 km) |
| Seaham to Opera | 801.70 mi (1,290.21 km) |
| Seaham to Oppeano | 859.32 mi (1,382.94 km) |
| Seaham to Orbassano | 784.40 mi (1,262.37 km) |
