| Alken to Smyrna (Delaware) | 3,825.11 mi (6,155.91 km) |
| Alken to Smyrna (Georgia) | 4,441.73 mi (7,148.27 km) |
| Alken to Smyrna (Tennessee) | 4,417.86 mi (7,109.85 km) |
| Alken to Snellville (Georgia) | 4,421.44 mi (7,115.61 km) |
| Alken to Snoqualmie (Washington) | 4,950.03 mi (7,966.30 km) |
| Alken to Snyder (Texas) | 5,132.12 mi (8,259.35 km) |
| Alken to Socastee (South Carolina) | 4,226.08 mi (6,801.22 km) |
| Alken to Socorro (Texas) | 5,383.02 mi (8,663.13 km) |
| Alken to Soddy-Daisy (Tennessee) | 4,399.41 mi (7,080.17 km) |
| Alken to Solana Beach (California) | 5,671.97 mi (9,128.16 km) |
| Alken to Soledad (California) | 5,590.96 mi (8,997.79 km) |
| Alken to Solon (Ohio) | 3,961.33 mi (6,375.14 km) |
| Alken to Somers Point (New Jersey) | 3,783.42 mi (6,088.82 km) |
| Alken to Somerset (Kentucky) | 4,288.17 mi (6,901.14 km) |
| Alken to Somerset (New Jersey) | 3,726.06 mi (5,996.52 km) |
