| Slough to Solofra | 1,039.82 mi (1,673.42 km) |
| Slough to Somma Lombardo | 584.08 mi (939.99 km) |
| Slough to Somma Vesuviana | 1,024.03 mi (1,648.01 km) |
| Slough to Sommacampagna | 671.63 mi (1,080.88 km) |
| Slough to Sona | 669.46 mi (1,077.40 km) |
| Slough to Sondrio | 600.90 mi (967.06 km) |
| Slough to Sora | 951.94 mi (1,531.99 km) |
| Slough to Sorbolo | 684.56 mi (1,101.69 km) |
| Slough to Soresina | 642.63 mi (1,034.21 km) |
| Slough to Sorisole | 613.73 mi (987.71 km) |
| Slough to Sorrento | 1,035.13 mi (1,665.89 km) |
| Slough to Sorso | 858.74 mi (1,382.01 km) |
| Slough to Sortino | 1,250.59 mi (2,012.64 km) |
| Slough to Soverato Marina | 1,212.26 mi (1,950.95 km) |
| Slough to Sovicille | 791.00 mi (1,273.00 km) |
