| Allonnes to Somma Lombardo | 433.18 mi (697.14 km) |
| Allonnes to Somma Vesuviana | 856.15 mi (1,377.84 km) |
| Allonnes to Sommacampagna | 536.31 mi (863.11 km) |
| Allonnes to Sona | 534.66 mi (860.46 km) |
| Allonnes to Sondrio | 473.17 mi (761.49 km) |
| Allonnes to Sora | 786.42 mi (1,265.62 km) |
| Allonnes to Sorbolo | 534.96 mi (860.93 km) |
| Allonnes to Soresina | 495.56 mi (797.53 km) |
| Allonnes to Sorisole | 474.05 mi (762.91 km) |
| Allonnes to Sorrento | 864.52 mi (1,391.32 km) |
| Allonnes to Sorso | 645.87 mi (1,039.42 km) |
| Allonnes to Sortino | 1,059.39 mi (1,704.92 km) |
| Allonnes to Soverato Marina | 1,040.46 mi (1,674.46 km) |
| Allonnes to Sovicille | 624.45 mi (1,004.96 km) |
| Allonnes to Spello | 695.77 mi (1,119.73 km) |
