| Seaham to Sestu | 1,177.69 mi (1,895.31 km) |
| Seaham to Settimo Torinese | 781.79 mi (1,258.18 km) |
| Seaham to Seveso | 784.41 mi (1,262.39 km) |
| Seaham to Sezze | 1,131.14 mi (1,820.40 km) |
| Seaham to Siano | 1,216.20 mi (1,957.28 km) |
| Seaham to Siena | 977.90 mi (1,573.78 km) |
| Seaham to Signa | 944.44 mi (1,519.93 km) |
| Seaham to Silea | 872.14 mi (1,403.58 km) |
| Seaham to Silvi Paese | 1,098.61 mi (1,768.05 km) |
| Seaham to Sinalunga | 994.42 mi (1,600.36 km) |
| Seaham to Siniscola | 1,108.18 mi (1,783.45 km) |
| Seaham to Sinnai | 1,179.61 mi (1,898.40 km) |
| Seaham to Siracusa | 1,456.57 mi (2,344.12 km) |
| Seaham to Solaro | 784.71 mi (1,262.86 km) |
| Seaham to Soliera | 884.17 mi (1,422.94 km) |
