| Watford to Sentrupert | 804.09 mi (1,294.07 km) |
| Watford to Sevnica | 811.30 mi (1,305.66 km) |
| Watford to Sezana | 767.85 mi (1,235.73 km) |
| Watford to Skocjan | 814.81 mi (1,311.31 km) |
| Watford to Skofja Loka | 765.65 mi (1,232.19 km) |
| Watford to Skofljica | 783.65 mi (1,261.17 km) |
| Watford to Slovenj Gradec | 783.25 mi (1,260.52 km) |
| Watford to Slovenska Bistrica | 807.57 mi (1,299.65 km) |
| Watford to Slovenske Konjice | 803.43 mi (1,292.99 km) |
| Watford to Smarje | 811.39 mi (1,305.80 km) |
| Watford to Smarjeske Toplice | 813.82 mi (1,309.72 km) |
| Watford to Smartno | 791.87 mi (1,274.39 km) |
| Watford to Smartno | 788.15 mi (1,268.41 km) |
| Watford to Sodrazica | 794.98 mi (1,279.40 km) |
| Watford to Solcava | 771.16 mi (1,241.06 km) |
