| Caldicot to Smyrna (Delaware) | 3,479.59 mi (5,599.86 km) |
| Caldicot to Smyrna (Georgia) | 4,097.44 mi (6,594.19 km) |
| Caldicot to Smyrna (Tennessee) | 4,077.87 mi (6,562.70 km) |
| Caldicot to Snellville (Georgia) | 4,076.71 mi (6,560.83 km) |
| Caldicot to Snoqualmie (Washington) | 4,700.78 mi (7,565.17 km) |
| Caldicot to Snyder (Texas) | 4,805.96 mi (7,734.45 km) |
| Caldicot to Socastee (South Carolina) | 3,877.71 mi (6,240.56 km) |
| Caldicot to Socorro (Texas) | 5,064.11 mi (8,149.90 km) |
| Caldicot to Soddy-Daisy (Tennessee) | 4,057.23 mi (6,529.47 km) |
| Caldicot to Solana Beach (California) | 5,378.57 mi (8,655.97 km) |
| Caldicot to Soledad (California) | 5,314.76 mi (8,553.28 km) |
| Caldicot to Solon (Ohio) | 3,623.86 mi (5,832.04 km) |
| Caldicot to Somers Point (New Jersey) | 3,437.22 mi (5,531.67 km) |
| Caldicot to Somerset (Kentucky) | 3,947.69 mi (6,353.19 km) |
| Caldicot to Somerset (New Jersey) | 3,381.14 mi (5,441.42 km) |
