| Watford to Stone | 113.57 mi (182.77 km) |
| Watford to Stonehaven | 374.01 mi (601.91 km) |
| Watford to Stourbridge | 92.82 mi (149.38 km) |
| Watford to Stowmarket | 70.02 mi (112.69 km) |
| Watford to Stranraer | 294.73 mi (474.32 km) |
| Watford to Stratford | 18.58 mi (29.90 km) |
| Watford to Stratford-upon-Avon | 67.08 mi (107.95 km) |
| Watford to Stratton Saint Margaret | 58.80 mi (94.64 km) |
| Watford to Streatham | 19.57 mi (31.50 km) |
| Watford to Street | 107.46 mi (172.94 km) |
| Watford to Streetly | 89.69 mi (144.35 km) |
| Watford to Stretford | 147.58 mi (237.50 km) |
| Watford to Strood | 41.69 mi (67.10 km) |
| Watford to Stroud | 78.15 mi (125.77 km) |
| Watford to Sudbury | 7.72 mi (12.42 km) |
