| Barstow to Solofra | 6,379.87 mi (10,267.41 km) |
| Barstow to Somma Lombardo | 5,924.62 mi (9,534.76 km) |
| Barstow to Somma Vesuviana | 6,364.49 mi (10,242.66 km) |
| Barstow to Sommacampagna | 6,007.83 mi (9,668.67 km) |
| Barstow to Sona | 6,005.56 mi (9,665.01 km) |
| Barstow to Sondrio | 5,936.72 mi (9,554.23 km) |
| Barstow to Sora | 6,292.33 mi (10,126.52 km) |
| Barstow to Sorbolo | 6,024.18 mi (9,694.98 km) |
| Barstow to Soresina | 5,982.29 mi (9,627.57 km) |
| Barstow to Sorisole | 5,952.44 mi (9,579.53 km) |
| Barstow to Sorrento | 6,375.78 mi (10,260.83 km) |
| Barstow to Sorso | 6,171.93 mi (9,932.76 km) |
| Barstow to Sortino | 6,586.38 mi (10,599.76 km) |
| Barstow to Soverato Marina | 6,552.80 mi (10,545.71 km) |
| Barstow to Sovicille | 6,131.68 mi (9,867.98 km) |
