| Portchester to Smyrna (Delaware) | 3,562.15 mi (5,732.72 km) |
| Portchester to Smyrna (Georgia) | 4,180.42 mi (6,727.73 km) |
| Portchester to Smyrna (Tennessee) | 4,162.22 mi (6,698.44 km) |
| Portchester to Snellville (Georgia) | 4,159.53 mi (6,694.11 km) |
| Portchester to Snoqualmie (Washington) | 4,785.34 mi (7,701.26 km) |
| Portchester to Snyder (Texas) | 4,892.50 mi (7,873.71 km) |
| Portchester to Socastee (South Carolina) | 3,958.64 mi (6,370.82 km) |
| Portchester to Socorro (Texas) | 5,151.18 mi (8,290.02 km) |
| Portchester to Soddy-Daisy (Tennessee) | 4,140.95 mi (6,664.21 km) |
| Portchester to Solana Beach (California) | 5,465.90 mi (8,796.52 km) |
| Portchester to Soledad (California) | 5,401.40 mi (8,692.71 km) |
| Portchester to Solon (Ohio) | 3,708.85 mi (5,968.82 km) |
| Portchester to Somers Point (New Jersey) | 3,519.46 mi (5,664.02 km) |
| Portchester to Somerset (Kentucky) | 4,031.92 mi (6,488.75 km) |
| Portchester to Somerset (New Jersey) | 3,463.97 mi (5,574.72 km) |
