| Alella to Solofra | 654.03 mi (1,052.56 km) |
| Alella to Somma Lombardo | 431.54 mi (694.50 km) |
| Alella to Somma Vesuviana | 632.27 mi (1,017.55 km) |
| Alella to Sommacampagna | 506.44 mi (815.04 km) |
| Alella to Sona | 506.86 mi (815.72 km) |
| Alella to Sondrio | 496.41 mi (798.90 km) |
| Alella to Sora | 584.65 mi (940.90 km) |
| Alella to Sorbolo | 471.25 mi (758.41 km) |
| Alella to Soresina | 460.92 mi (741.78 km) |
| Alella to Sorisole | 470.27 mi (756.83 km) |
| Alella to Sorrento | 631.54 mi (1,016.37 km) |
| Alella to Sorso | 330.27 mi (531.51 km) |
| Alella to Sortino | 742.57 mi (1,195.06 km) |
| Alella to Soverato Marina | 777.10 mi (1,250.62 km) |
| Alella to Sovicille | 472.26 mi (760.03 km) |
