| Watford to Solymar | 906.24 mi (1,458.45 km) |
| Watford to Sopron | 805.00 mi (1,295.53 km) |
| Watford to Szarvas | 996.57 mi (1,603.82 km) |
| Watford to Szazhalombatta | 914.33 mi (1,471.47 km) |
| Watford to Szeged | 999.61 mi (1,608.72 km) |
| Watford to Szeghalom | 1,017.56 mi (1,637.61 km) |
| Watford to Szekesfehervar | 896.43 mi (1,442.66 km) |
| Watford to Szekszard | 936.39 mi (1,506.97 km) |
| Watford to Szentendre | 908.83 mi (1,462.61 km) |
| Watford to Szentes | 991.20 mi (1,595.18 km) |
| Watford to Szentgotthard | 816.23 mi (1,313.60 km) |
| Watford to Szigethalom | 917.82 mi (1,477.10 km) |
| Watford to Szigetszentmiklos | 918.61 mi (1,478.35 km) |
| Watford to Szigetvar | 910.20 mi (1,464.83 km) |
| Watford to Szolnok | 972.15 mi (1,564.52 km) |
