| Union to Solofra | 5,239.69 mi (8,432.47 km) |
| Union to Somma Lombardo | 4,791.51 mi (7,711.18 km) |
| Union to Somma Vesuviana | 5,221.19 mi (8,402.69 km) |
| Union to Sommacampagna | 4,887.92 mi (7,866.34 km) |
| Union to Sona | 4,885.92 mi (7,863.12 km) |
| Union to Sondrio | 4,818.65 mi (7,754.86 km) |
| Union to Sora | 5,151.57 mi (8,290.64 km) |
| Union to Sorbolo | 4,894.33 mi (7,876.66 km) |
| Union to Soresina | 4,853.18 mi (7,810.43 km) |
| Union to Sorisole | 4,827.33 mi (7,768.83 km) |
| Union to Sorrento | 5,229.19 mi (8,415.57 km) |
| Union to Sorso | 4,980.46 mi (8,015.28 km) |
| Union to Sortino | 5,408.05 mi (8,703.41 km) |
| Union to Soverato Marina | 5,403.99 mi (8,696.88 km) |
| Union to Sovicille | 4,989.40 mi (8,029.66 km) |
