| Alliance to Solofra | 4,723.36 mi (7,601.51 km) |
| Alliance to Somma Lombardo | 4,280.38 mi (6,888.61 km) |
| Alliance to Somma Vesuviana | 4,704.29 mi (7,570.82 km) |
| Alliance to Sommacampagna | 4,379.17 mi (7,047.60 km) |
| Alliance to Sona | 4,377.26 mi (7,044.52 km) |
| Alliance to Sondrio | 4,310.98 mi (6,937.85 km) |
| Alliance to Sora | 4,635.76 mi (7,460.53 km) |
| Alliance to Sorbolo | 4,383.12 mi (7,053.95 km) |
| Alliance to Soresina | 4,342.50 mi (6,988.57 km) |
| Alliance to Sorisole | 4,317.85 mi (6,948.91 km) |
| Alliance to Sorrento | 4,711.50 mi (7,582.43 km) |
| Alliance to Sorso | 4,454.67 mi (7,169.09 km) |
| Alliance to Sortino | 4,882.45 mi (7,857.55 km) |
| Alliance to Soverato Marina | 4,884.60 mi (7,861.00 km) |
| Alliance to Sovicille | 4,474.48 mi (7,200.98 km) |
