| Silleda to Sestu | 931.62 mi (1,499.30 km) |
| Silleda to Settimo Torinese | 812.45 mi (1,307.51 km) |
| Silleda to Seveso | 882.63 mi (1,420.45 km) |
| Silleda to Sezze | 1,092.19 mi (1,757.72 km) |
| Silleda to Siano | 1,185.41 mi (1,907.73 km) |
| Silleda to Siena | 987.15 mi (1,588.66 km) |
| Silleda to Signa | 973.74 mi (1,567.09 km) |
| Silleda to Silea | 1,034.57 mi (1,664.98 km) |
| Silleda to Silvi Paese | 1,132.97 mi (1,823.34 km) |
| Silleda to Sinalunga | 1,007.86 mi (1,622.00 km) |
| Silleda to Siniscola | 935.60 mi (1,505.69 km) |
| Silleda to Sinnai | 937.13 mi (1,508.17 km) |
| Silleda to Siracusa | 1,301.35 mi (2,094.31 km) |
| Silleda to Solaro | 879.82 mi (1,415.93 km) |
| Silleda to Soliera | 964.67 mi (1,552.49 km) |
