| Urdorf to Smyrna (Delaware) | 4,051.20 mi (6,519.77 km) |
| Urdorf to Smyrna (Georgia) | 4,670.17 mi (7,515.92 km) |
| Urdorf to Smyrna (Tennessee) | 4,654.18 mi (7,490.17 km) |
| Urdorf to Snellville (Georgia) | 4,648.95 mi (7,481.76 km) |
| Urdorf to Snoqualmie (Washington) | 5,228.91 mi (8,415.12 km) |
| Urdorf to Snyder (Texas) | 5,384.55 mi (8,665.60 km) |
| Urdorf to Socastee (South Carolina) | 4,443.87 mi (7,151.72 km) |
| Urdorf to Socorro (Texas) | 5,641.21 mi (9,078.65 km) |
| Urdorf to Soddy-Daisy (Tennessee) | 4,632.02 mi (7,454.51 km) |
| Urdorf to Solana Beach (California) | 5,942.99 mi (9,564.32 km) |
| Urdorf to Soledad (California) | 5,866.60 mi (9,441.38 km) |
| Urdorf to Solon (Ohio) | 4,201.47 mi (6,761.61 km) |
| Urdorf to Somers Point (New Jersey) | 4,007.88 mi (6,450.06 km) |
| Urdorf to Somerset (Kentucky) | 4,523.74 mi (7,280.26 km) |
| Urdorf to Somerset (New Jersey) | 3,953.56 mi (6,362.65 km) |
