| West Allis to Sestu | 4,752.62 mi (7,648.61 km) |
| West Allis to Settimo Torinese | 4,452.94 mi (7,166.31 km) |
| West Allis to Seveso | 4,485.43 mi (7,218.60 km) |
| West Allis to Sezze | 4,817.41 mi (7,752.87 km) |
| West Allis to Siano | 4,913.07 mi (7,906.82 km) |
| West Allis to Siena | 4,669.27 mi (7,514.46 km) |
| West Allis to Signa | 4,640.18 mi (7,467.65 km) |
| West Allis to Silea | 4,605.87 mi (7,412.43 km) |
| West Allis to Silvi Paese | 4,811.74 mi (7,743.75 km) |
| West Allis to Sinalunga | 4,689.42 mi (7,546.90 km) |
| West Allis to Siniscola | 4,722.34 mi (7,599.87 km) |
| West Allis to Sinnai | 4,757.11 mi (7,655.84 km) |
| West Allis to Siracusa | 5,108.34 mi (8,221.08 km) |
| West Allis to Solaro | 4,484.53 mi (7,217.16 km) |
| West Allis to Soliera | 4,592.55 mi (7,390.99 km) |
