| Romulus to Senftenberg | 4,295.56 mi (6,913.04 km) |
| Romulus to Siegburg | 4,071.44 mi (6,552.35 km) |
| Romulus to Siegen | 4,099.15 mi (6,596.94 km) |
| Romulus to Sigmaringen | 4,246.33 mi (6,833.80 km) |
| Romulus to Simbach am Inn | 4,385.20 mi (7,057.29 km) |
| Romulus to Simmerath | 4,044.09 mi (6,508.33 km) |
| Romulus to Sindelfingen | 4,214.84 mi (6,783.13 km) |
| Romulus to Sinsheim | 4,190.56 mi (6,744.05 km) |
| Romulus to Sinzheim | 4,180.75 mi (6,728.27 km) |
| Romulus to Sinzig | 4,082.15 mi (6,569.58 km) |
| Romulus to Soest | 4,078.51 mi (6,563.73 km) |
| Romulus to Solingen | 4,054.24 mi (6,524.67 km) |
| Romulus to Soltau | 4,091.88 mi (6,585.24 km) |
| Romulus to Sommerda | 4,204.06 mi (6,765.79 km) |
| Romulus to Sondershausen | 4,187.37 mi (6,738.91 km) |
