| Royston to Solofra | 1,045.56 mi (1,682.67 km) |
| Royston to Somma Lombardo | 591.15 mi (951.36 km) |
| Royston to Somma Vesuviana | 1,030.43 mi (1,658.31 km) |
| Royston to Sommacampagna | 674.28 mi (1,085.15 km) |
| Royston to Sona | 672.05 mi (1,081.56 km) |
| Royston to Sondrio | 603.21 mi (970.77 km) |
| Royston to Sora | 958.22 mi (1,542.11 km) |
| Royston to Sorbolo | 689.87 mi (1,110.23 km) |
| Royston to Soresina | 648.00 mi (1,042.85 km) |
| Royston to Sorisole | 618.11 mi (994.75 km) |
| Royston to Sorrento | 1,042.09 mi (1,677.08 km) |
| Royston to Sorso | 877.07 mi (1,411.50 km) |
| Royston to Sortino | 1,261.63 mi (2,030.39 km) |
| Royston to Soverato Marina | 1,218.74 mi (1,961.37 km) |
| Royston to Sovicille | 798.69 mi (1,285.37 km) |
