| Horley to Sestu | 934.41 mi (1,503.79 km) |
| Horley to Settimo Torinese | 554.43 mi (892.28 km) |
| Horley to Seveso | 572.21 mi (920.88 km) |
| Horley to Sezze | 916.84 mi (1,475.51 km) |
| Horley to Siano | 1,007.72 mi (1,621.78 km) |
| Horley to Siena | 763.64 mi (1,228.95 km) |
| Horley to Signa | 731.84 mi (1,177.79 km) |
| Horley to Silea | 685.90 mi (1,103.85 km) |
| Horley to Silvi Paese | 897.59 mi (1,444.53 km) |
| Horley to Sinalunga | 782.19 mi (1,258.82 km) |
| Horley to Siniscola | 871.05 mi (1,401.83 km) |
| Horley to Sinnai | 936.79 mi (1,507.62 km) |
| Horley to Siracusa | 1,234.74 mi (1,987.12 km) |
| Horley to Solaro | 571.79 mi (920.21 km) |
| Horley to Soliera | 677.95 mi (1,091.06 km) |
