| Walton upon Thames to Solofra | 1,028.68 mi (1,655.49 km) |
| Walton upon Thames to Somma Lombardo | 572.92 mi (922.02 km) |
| Walton upon Thames to Somma Vesuviana | 1,012.86 mi (1,630.04 km) |
| Walton upon Thames to Sommacampagna | 660.67 mi (1,063.24 km) |
| Walton upon Thames to Sona | 658.51 mi (1,059.77 km) |
| Walton upon Thames to Sondrio | 589.98 mi (949.48 km) |
| Walton upon Thames to Sora | 940.78 mi (1,514.03 km) |
| Walton upon Thames to Sorbolo | 673.46 mi (1,083.83 km) |
| Walton upon Thames to Soresina | 631.53 mi (1,016.35 km) |
| Walton upon Thames to Sorisole | 602.69 mi (969.93 km) |
| Walton upon Thames to Sorrento | 1,023.95 mi (1,647.88 km) |
| Walton upon Thames to Sorso | 847.57 mi (1,364.03 km) |
| Walton upon Thames to Sortino | 1,239.32 mi (1,994.49 km) |
| Walton upon Thames to Soverato Marina | 1,201.09 mi (1,932.96 km) |
| Walton upon Thames to Sovicille | 779.80 mi (1,254.97 km) |
