| Ludlow to Solofra | 1,147.86 mi (1,847.30 km) |
| Ludlow to Somma Lombardo | 692.03 mi (1,113.72 km) |
| Ludlow to Somma Vesuviana | 1,131.93 mi (1,821.67 km) |
| Ludlow to Sommacampagna | 780.06 mi (1,255.38 km) |
| Ludlow to Sona | 777.90 mi (1,251.90 km) |
| Ludlow to Sondrio | 709.33 mi (1,141.56 km) |
| Ludlow to Sora | 1,059.89 mi (1,705.73 km) |
| Ludlow to Sorbolo | 792.78 mi (1,275.85 km) |
| Ludlow to Soresina | 750.85 mi (1,208.38 km) |
| Ludlow to Sorisole | 722.08 mi (1,162.08 km) |
| Ludlow to Sorrento | 1,142.90 mi (1,839.32 km) |
| Ludlow to Sorso | 960.20 mi (1,545.29 km) |
| Ludlow to Sortino | 1,356.74 mi (2,183.46 km) |
| Ludlow to Soverato Marina | 1,320.10 mi (2,124.50 km) |
| Ludlow to Sovicille | 898.67 mi (1,446.27 km) |
