| Horw to Smyrna (Delaware) | 4,057.59 mi (6,530.06 km) |
| Horw to Smyrna (Georgia) | 4,676.81 mi (7,526.60 km) |
| Horw to Smyrna (Tennessee) | 4,662.07 mi (7,502.88 km) |
| Horw to Snellville (Georgia) | 4,655.45 mi (7,492.22 km) |
| Horw to Snoqualmie (Washington) | 5,247.79 mi (8,445.50 km) |
| Horw to Snyder (Texas) | 5,395.24 mi (8,682.81 km) |
| Horw to Socastee (South Carolina) | 4,448.96 mi (7,159.91 km) |
| Horw to Socorro (Texas) | 5,653.06 mi (9,097.73 km) |
| Horw to Soddy-Daisy (Tennessee) | 4,639.31 mi (7,466.26 km) |
| Horw to Solana Beach (California) | 5,958.10 mi (9,588.63 km) |
| Horw to Soledad (California) | 5,883.39 mi (9,468.41 km) |
| Horw to Solon (Ohio) | 4,210.08 mi (6,775.48 km) |
| Horw to Somers Point (New Jersey) | 4,014.04 mi (6,459.97 km) |
| Horw to Somerset (Kentucky) | 4,531.54 mi (7,292.81 km) |
| Horw to Somerset (New Jersey) | 3,960.20 mi (6,373.32 km) |
