| Waltham Cross to Sestu | 961.47 mi (1,547.34 km) |
| Waltham Cross to Settimo Torinese | 576.34 mi (927.53 km) |
| Waltham Cross to Seveso | 590.28 mi (949.97 km) |
| Waltham Cross to Sezze | 936.39 mi (1,506.97 km) |
| Waltham Cross to Siano | 1,026.12 mi (1,651.38 km) |
| Waltham Cross to Siena | 782.85 mi (1,259.88 km) |
| Waltham Cross to Signa | 750.58 mi (1,207.94 km) |
| Waltham Cross to Silea | 698.61 mi (1,124.30 km) |
| Waltham Cross to Silvi Paese | 914.14 mi (1,471.17 km) |
| Waltham Cross to Sinalunga | 800.98 mi (1,289.05 km) |
| Waltham Cross to Siniscola | 896.27 mi (1,442.41 km) |
| Waltham Cross to Sinnai | 963.72 mi (1,550.95 km) |
| Waltham Cross to Siracusa | 1,256.44 mi (2,022.04 km) |
| Waltham Cross to Solaro | 590.04 mi (949.57 km) |
| Waltham Cross to Soliera | 695.03 mi (1,118.54 km) |
