| Western Springs to Solofra | 4,964.98 mi (7,990.36 km) |
| Western Springs to Somma Lombardo | 4,515.33 mi (7,266.72 km) |
| Western Springs to Somma Vesuviana | 4,946.70 mi (7,960.94 km) |
| Western Springs to Sommacampagna | 4,610.96 mi (7,420.62 km) |
| Western Springs to Sona | 4,608.94 mi (7,417.37 km) |
| Western Springs to Sondrio | 4,541.43 mi (7,308.72 km) |
| Western Springs to Sora | 4,876.72 mi (7,848.33 km) |
| Western Springs to Sorbolo | 4,618.11 mi (7,432.13 km) |
| Western Springs to Soresina | 4,576.82 mi (7,365.68 km) |
| Western Springs to Sorisole | 4,550.63 mi (7,323.53 km) |
| Western Springs to Sorrento | 4,954.99 mi (7,974.29 km) |
| Western Springs to Sorso | 4,710.04 mi (7,580.08 km) |
| Western Springs to Sortino | 5,137.20 mi (8,267.52 km) |
| Western Springs to Soverato Marina | 5,130.35 mi (8,256.49 km) |
| Western Springs to Sovicille | 4,714.35 mi (7,587.01 km) |
