| Portchester to Solofra | 1,030.01 mi (1,657.64 km) |
| Portchester to Somma Lombardo | 574.57 mi (924.68 km) |
| Portchester to Somma Vesuviana | 1,013.50 mi (1,631.07 km) |
| Portchester to Sommacampagna | 666.71 mi (1,072.96 km) |
| Portchester to Sona | 664.64 mi (1,069.63 km) |
| Portchester to Sondrio | 596.83 mi (960.50 km) |
| Portchester to Sora | 941.72 mi (1,515.56 km) |
| Portchester to Sorbolo | 676.49 mi (1,088.71 km) |
| Portchester to Soresina | 634.71 mi (1,021.47 km) |
| Portchester to Sorisole | 607.16 mi (977.13 km) |
| Portchester to Sorrento | 1,023.94 mi (1,647.87 km) |
| Portchester to Sorso | 834.86 mi (1,343.58 km) |
| Portchester to Sortino | 1,234.31 mi (1,986.43 km) |
| Portchester to Soverato Marina | 1,201.27 mi (1,933.26 km) |
| Portchester to Sovicille | 779.69 mi (1,254.78 km) |
