| Busto Arsizio to Settimo Torinese | 62.19 mi (100.09 km) |
| Busto Arsizio to Seveso | 13.97 mi (22.48 km) |
| Busto Arsizio to Sezze | 353.81 mi (569.40 km) |
| Busto Arsizio to Siano | 443.60 mi (713.91 km) |
| Busto Arsizio to Siena | 200.14 mi (322.10 km) |
| Busto Arsizio to Signa | 167.78 mi (270.02 km) |
| Busto Arsizio to Silea | 166.45 mi (267.87 km) |
| Busto Arsizio to Silvi Paese | 336.10 mi (540.89 km) |
| Busto Arsizio to Sinalunga | 218.18 mi (351.12 km) |
| Busto Arsizio to Siniscola | 350.66 mi (564.34 km) |
| Busto Arsizio to Sinnai | 436.30 mi (702.16 km) |
| Busto Arsizio to Siracusa | 677.58 mi (1,090.46 km) |
| Busto Arsizio to Solaro | 11.22 mi (18.06 km) |
| Busto Arsizio to Soliera | 117.63 mi (189.30 km) |
| Busto Arsizio to Solofra | 447.20 mi (719.70 km) |
