| Cities | Distance |
|---|---|
| Seaham to Norwich | 186.85 mi (300.71 km) |
| Seaham to Nottingham | 130.59 mi (210.16 km) |
| Seaham to Nuneaton | 160.17 mi (257.78 km) |
| Seaham to Oadby | 155.23 mi (249.82 km) |
| Seaham to Oakengates | 154.99 mi (249.43 km) |
| Seaham to Oakham | 151.93 mi (244.51 km) |
| Seaham to Oldbury | 163.69 mi (263.43 km) |
| Seaham to Oldham | 94.86 mi (152.67 km) |
| Seaham to Ollerton | 114.05 mi (183.55 km) |
| Seaham to Olton | 167.07 mi (268.88 km) |
| Seaham to Omagh | 238.03 mi (383.07 km) |
| Seaham to Ormesby | 21.06 mi (33.90 km) |
| Seaham to Ormskirk | 107.93 mi (173.70 km) |
| Seaham to Orpington | 246.78 mi (397.15 km) |
| Seaham to Ossett | 80.73 mi (129.92 km) |