| Mount Prospect to Solofra | 4,955.06 mi (7,974.40 km) |
| Mount Prospect to Somma Lombardo | 4,505.11 mi (7,250.27 km) |
| Mount Prospect to Somma Vesuviana | 4,936.83 mi (7,945.05 km) |
| Mount Prospect to Sommacampagna | 4,600.55 mi (7,403.87 km) |
| Mount Prospect to Sona | 4,598.52 mi (7,400.60 km) |
| Mount Prospect to Sondrio | 4,530.96 mi (7,291.87 km) |
| Mount Prospect to Sora | 4,866.78 mi (7,832.33 km) |
| Mount Prospect to Sorbolo | 4,607.87 mi (7,415.66 km) |
| Mount Prospect to Soresina | 4,566.56 mi (7,349.16 km) |
| Mount Prospect to Sorisole | 4,540.28 mi (7,306.88 km) |
| Mount Prospect to Sorrento | 4,945.19 mi (7,958.51 km) |
| Mount Prospect to Sorso | 4,700.99 mi (7,565.51 km) |
| Mount Prospect to Sortino | 5,128.04 mi (8,252.78 km) |
| Mount Prospect to Soverato Marina | 5,120.64 mi (8,240.88 km) |
| Mount Prospect to Sovicille | 4,704.37 mi (7,570.95 km) |
