| Royston to Smyrna (Delaware) | 3,581.97 mi (5,764.62 km) |
| Royston to Smyrna (Georgia) | 4,198.65 mi (6,757.08 km) |
| Royston to Smyrna (Tennessee) | 4,175.41 mi (6,719.68 km) |
| Royston to Snellville (Georgia) | 4,178.33 mi (6,724.38 km) |
| Royston to Snoqualmie (Washington) | 4,749.17 mi (7,643.05 km) |
| Royston to Snyder (Texas) | 4,893.89 mi (7,875.96 km) |
| Royston to Socastee (South Carolina) | 3,983.17 mi (6,410.29 km) |
| Royston to Socorro (Texas) | 5,147.66 mi (8,284.35 km) |
| Royston to Soddy-Daisy (Tennessee) | 4,156.58 mi (6,689.37 km) |
| Royston to Solana Beach (California) | 5,448.28 mi (8,768.16 km) |
| Royston to Soledad (California) | 5,375.95 mi (8,651.75 km) |
| Royston to Solon (Ohio) | 3,719.42 mi (5,985.82 km) |
| Royston to Somers Point (New Jersey) | 3,540.28 mi (5,697.53 km) |
| Royston to Somerset (Kentucky) | 4,045.62 mi (6,510.80 km) |
| Royston to Somerset (New Jersey) | 3,482.94 mi (5,605.25 km) |
