| West Allis to Solofra | 4,917.80 mi (7,914.44 km) |
| West Allis to Somma Lombardo | 4,466.84 mi (7,188.68 km) |
| West Allis to Somma Vesuviana | 4,899.74 mi (7,885.37 km) |
| West Allis to Sommacampagna | 4,561.60 mi (7,341.18 km) |
| West Allis to Sona | 4,559.55 mi (7,337.88 km) |
| West Allis to Sondrio | 4,491.80 mi (7,228.85 km) |
| West Allis to Sora | 4,829.45 mi (7,772.25 km) |
| West Allis to Sorbolo | 4,569.54 mi (7,353.96 km) |
| West Allis to Soresina | 4,528.12 mi (7,287.30 km) |
| West Allis to Sorisole | 4,501.56 mi (7,244.56 km) |
| West Allis to Sorrento | 4,908.31 mi (7,899.17 km) |
| West Allis to Sorso | 4,666.81 mi (7,510.50 km) |
| West Allis to Sortino | 5,093.43 mi (8,197.09 km) |
| West Allis to Soverato Marina | 5,084.12 mi (8,182.10 km) |
| West Allis to Sovicille | 4,666.93 mi (7,510.70 km) |
