| Rockford to Sestu | 4,825.29 mi (7,765.55 km) |
| Rockford to Settimo Torinese | 4,526.32 mi (7,284.41 km) |
| Rockford to Seveso | 4,558.93 mi (7,336.89 km) |
| Rockford to Sezze | 4,890.73 mi (7,870.87 km) |
| Rockford to Siano | 4,986.43 mi (8,024.88 km) |
| Rockford to Siena | 4,742.67 mi (7,632.59 km) |
| Rockford to Signa | 4,713.61 mi (7,585.83 km) |
| Rockford to Silea | 4,679.48 mi (7,530.89 km) |
| Rockford to Silvi Paese | 4,885.22 mi (7,862.01 km) |
| Rockford to Sinalunga | 4,762.84 mi (7,665.05 km) |
| Rockford to Siniscola | 4,795.28 mi (7,717.26 km) |
| Rockford to Sinnai | 4,829.79 mi (7,772.80 km) |
| Rockford to Siracusa | 5,181.31 mi (8,338.51 km) |
| Rockford to Solaro | 4,558.03 mi (7,335.44 km) |
| Rockford to Soliera | 4,666.05 mi (7,509.28 km) |
