| Helston to Sestu | 1,023.37 mi (1,646.95 km) |
| Helston to Settimo Torinese | 696.06 mi (1,120.20 km) |
| Helston to Seveso | 733.73 mi (1,180.82 km) |
| Helston to Sezze | 1,060.04 mi (1,705.98 km) |
| Helston to Siano | 1,155.77 mi (1,860.04 km) |
| Helston to Siena | 912.54 mi (1,468.59 km) |
| Helston to Signa | 884.28 mi (1,423.12 km) |
| Helston to Silea | 867.55 mi (1,396.19 km) |
| Helston to Silvi Paese | 1,057.43 mi (1,701.78 km) |
| Helston to Sinalunga | 932.96 mi (1,501.45 km) |
| Helston to Siniscola | 977.27 mi (1,572.76 km) |
| Helston to Sinnai | 1,026.91 mi (1,652.64 km) |
| Helston to Siracusa | 1,358.95 mi (2,187.02 km) |
| Helston to Solaro | 732.47 mi (1,178.80 km) |
| Helston to Soliera | 840.52 mi (1,352.69 km) |
