| Seia to Smyrna (Delaware) | 3,508.87 mi (5,646.98 km) |
| Seia to Smyrna (Georgia) | 4,120.40 mi (6,631.15 km) |
| Seia to Smyrna (Tennessee) | 4,144.40 mi (6,669.76 km) |
| Seia to Snellville (Georgia) | 4,095.35 mi (6,590.83 km) |
| Seia to Snoqualmie (Washington) | 5,144.03 mi (8,278.52 km) |
| Seia to Snyder (Texas) | 4,951.60 mi (7,968.82 km) |
| Seia to Socastee (South Carolina) | 3,852.57 mi (6,200.12 km) |
| Seia to Socorro (Texas) | 5,243.91 mi (8,439.26 km) |
| Seia to Soddy-Daisy (Tennessee) | 4,103.67 mi (6,604.22 km) |
| Seia to Solana Beach (California) | 5,664.83 mi (9,116.66 km) |
| Seia to Soledad (California) | 5,663.95 mi (9,115.24 km) |
| Seia to Solon (Ohio) | 3,726.87 mi (5,997.82 km) |
| Seia to Somers Point (New Jersey) | 3,459.38 mi (5,567.33 km) |
| Seia to Somerset (Kentucky) | 4,013.84 mi (6,459.66 km) |
| Seia to Somerset (New Jersey) | 3,421.33 mi (5,506.10 km) |
