| Rockford to Solofra | 4,991.17 mi (8,032.52 km) |
| Rockford to Somma Lombardo | 4,540.32 mi (7,306.94 km) |
| Rockford to Somma Vesuviana | 4,973.09 mi (8,003.41 km) |
| Rockford to Sommacampagna | 4,635.15 mi (7,459.55 km) |
| Rockford to Sona | 4,633.10 mi (7,456.25 km) |
| Rockford to Sondrio | 4,565.36 mi (7,347.24 km) |
| Rockford to Sora | 4,902.83 mi (7,890.34 km) |
| Rockford to Sorbolo | 4,643.03 mi (7,472.23 km) |
| Rockford to Soresina | 4,601.62 mi (7,405.59 km) |
| Rockford to Sorisole | 4,575.09 mi (7,362.90 km) |
| Rockford to Sorrento | 4,981.64 mi (8,017.17 km) |
| Rockford to Sorso | 4,739.68 mi (7,627.77 km) |
| Rockford to Sortino | 5,166.39 mi (8,314.51 km) |
| Rockford to Soverato Marina | 5,157.40 mi (8,300.03 km) |
| Rockford to Sovicille | 4,740.32 mi (7,628.81 km) |
