| Watford to Smyrna (Delaware) | 3,574.89 mi (5,753.23 km) |
| Watford to Smyrna (Georgia) | 4,192.15 mi (6,746.61 km) |
| Watford to Smyrna (Tennessee) | 4,170.56 mi (6,711.87 km) |
| Watford to Snellville (Georgia) | 4,171.64 mi (6,713.61 km) |
| Watford to Snoqualmie (Washington) | 4,760.62 mi (7,661.48 km) |
| Watford to Snyder (Texas) | 4,892.96 mi (7,874.47 km) |
| Watford to Socastee (South Carolina) | 3,974.59 mi (6,396.49 km) |
| Watford to Socorro (Texas) | 5,148.36 mi (8,285.49 km) |
| Watford to Soddy-Daisy (Tennessee) | 4,150.92 mi (6,680.27 km) |
| Watford to Solana Beach (California) | 5,453.65 mi (8,776.80 km) |
| Watford to Soledad (California) | 5,383.89 mi (8,664.54 km) |
| Watford to Solon (Ohio) | 3,715.38 mi (5,979.33 km) |
| Watford to Somers Point (New Jersey) | 3,532.87 mi (5,685.61 km) |
| Watford to Somerset (Kentucky) | 4,040.59 mi (6,502.70 km) |
| Watford to Somerset (New Jersey) | 3,476.13 mi (5,594.29 km) |
