| Knowsley to Sestu | 1,127.94 mi (1,815.24 km) |
| Knowsley to Settimo Torinese | 746.10 mi (1,200.73 km) |
| Knowsley to Seveso | 759.48 mi (1,222.27 km) |
| Knowsley to Sezze | 1,105.96 mi (1,779.87 km) |
| Knowsley to Siano | 1,195.23 mi (1,923.54 km) |
| Knowsley to Siena | 952.36 mi (1,532.67 km) |
| Knowsley to Signa | 919.94 mi (1,480.50 km) |
| Knowsley to Silea | 863.62 mi (1,389.87 km) |
| Knowsley to Silvi Paese | 1,082.25 mi (1,741.71 km) |
| Knowsley to Sinalunga | 970.33 mi (1,561.60 km) |
| Knowsley to Siniscola | 1,064.64 mi (1,713.37 km) |
| Knowsley to Sinnai | 1,130.35 mi (1,819.13 km) |
| Knowsley to Siracusa | 1,426.25 mi (2,295.33 km) |
| Knowsley to Solaro | 759.30 mi (1,221.98 km) |
| Knowsley to Soliera | 863.65 mi (1,389.91 km) |
