| Seaham to Sunbury | 239.12 mi (384.83 km) |
| Seaham to Sunderland | 4.84 mi (7.79 km) |
| Seaham to Sunninghill | 239.20 mi (384.95 km) |
| Seaham to Surbiton | 241.91 mi (389.32 km) |
| Seaham to Sutton | 244.69 mi (393.79 km) |
| Seaham to Sutton Coldfield | 158.55 mi (255.17 km) |
| Seaham to Sutton in Ashfield | 118.54 mi (190.77 km) |
| Seaham to Sutton on Hull | 84.26 mi (135.60 km) |
| Seaham to Swadlincote | 143.02 mi (230.17 km) |
| Seaham to Swallownest | 102.10 mi (164.32 km) |
| Seaham to Swanage | 293.55 mi (472.42 km) |
| Seaham to Swindon | 227.36 mi (365.89 km) |
| Seaham to Swinton | 93.44 mi (150.38 km) |
| Seaham to Swinton | 100.28 mi (161.38 km) |
| Seaham to Syston | 148.24 mi (238.57 km) |
