| Grenchen to Solofra | 574.01 mi (923.79 km) |
| Grenchen to Somma Lombardo | 121.24 mi (195.11 km) |
| Grenchen to Somma Vesuviana | 558.87 mi (899.41 km) |
| Grenchen to Sommacampagna | 206.10 mi (331.68 km) |
| Grenchen to Sona | 204.04 mi (328.38 km) |
| Grenchen to Sondrio | 136.83 mi (220.20 km) |
| Grenchen to Sora | 486.66 mi (783.20 km) |
| Grenchen to Sorbolo | 218.33 mi (351.36 km) |
| Grenchen to Soresina | 176.43 mi (283.94 km) |
| Grenchen to Sorisole | 147.12 mi (236.77 km) |
| Grenchen to Sorrento | 570.67 mi (918.41 km) |
| Grenchen to Sorso | 445.53 mi (717.02 km) |
| Grenchen to Sortino | 794.43 mi (1,278.51 km) |
| Grenchen to Soverato Marina | 747.17 mi (1,202.45 km) |
| Grenchen to Sovicille | 328.13 mi (528.08 km) |
