| Birsfelden to Sestu | 575.00 mi (925.37 km) |
| Birsfelden to Settimo Torinese | 167.35 mi (269.32 km) |
| Birsfelden to Seveso | 150.26 mi (241.82 km) |
| Birsfelden to Sezze | 496.52 mi (799.08 km) |
| Birsfelden to Siano | 582.85 mi (938.01 km) |
| Birsfelden to Siena | 343.33 mi (552.54 km) |
| Birsfelden to Signa | 309.81 mi (498.59 km) |
| Birsfelden to Silea | 257.66 mi (414.67 km) |
| Birsfelden to Silvi Paese | 468.68 mi (754.26 km) |
| Birsfelden to Sinalunga | 359.82 mi (579.07 km) |
| Birsfelden to Siniscola | 493.01 mi (793.43 km) |
| Birsfelden to Sinnai | 575.52 mi (926.21 km) |
| Birsfelden to Siracusa | 822.48 mi (1,323.66 km) |
| Birsfelden to Solaro | 150.81 mi (242.71 km) |
| Birsfelden to Soliera | 250.56 mi (403.24 km) |
