| Romulus to Solofra | 4,763.30 mi (7,665.80 km) |
| Romulus to Somma Lombardo | 4,316.42 mi (6,946.60 km) |
| Romulus to Somma Vesuviana | 4,744.65 mi (7,635.78 km) |
| Romulus to Sommacampagna | 4,413.58 mi (7,102.97 km) |
| Romulus to Sona | 4,411.61 mi (7,099.80 km) |
| Romulus to Sondrio | 4,344.62 mi (6,992.00 km) |
| Romulus to Sora | 4,675.29 mi (7,524.15 km) |
| Romulus to Sorbolo | 4,419.25 mi (7,112.10 km) |
| Romulus to Soresina | 4,378.24 mi (7,046.10 km) |
| Romulus to Sorisole | 4,352.75 mi (7,005.07 km) |
| Romulus to Sorrento | 4,752.46 mi (7,648.35 km) |
| Romulus to Sorso | 4,502.09 mi (7,245.42 km) |
| Romulus to Sortino | 4,929.76 mi (7,933.68 km) |
| Romulus to Soverato Marina | 4,926.90 mi (7,929.08 km) |
| Romulus to Sovicille | 4,513.31 mi (7,263.47 km) |
