| Rickmansworth to Sestu | 968.31 mi (1,558.35 km) |
| Rickmansworth to Settimo Torinese | 586.37 mi (943.68 km) |
| Rickmansworth to Seveso | 602.24 mi (969.21 km) |
| Rickmansworth to Sezze | 947.72 mi (1,525.20 km) |
| Rickmansworth to Siano | 1,038.01 mi (1,670.52 km) |
| Rickmansworth to Siena | 794.32 mi (1,278.33 km) |
| Rickmansworth to Signa | 762.27 mi (1,226.75 km) |
| Rickmansworth to Silea | 712.79 mi (1,147.12 km) |
| Rickmansworth to Silvi Paese | 926.85 mi (1,491.62 km) |
| Rickmansworth to Sinalunga | 812.65 mi (1,307.84 km) |
| Rickmansworth to Siniscola | 904.38 mi (1,455.47 km) |
| Rickmansworth to Sinnai | 970.66 mi (1,562.12 km) |
| Rickmansworth to Siracusa | 1,266.68 mi (2,038.53 km) |
| Rickmansworth to Solaro | 601.91 mi (968.68 km) |
| Rickmansworth to Soliera | 707.46 mi (1,138.55 km) |
