| Castagneto Carducci to Smyrna (Delaware) | 4,278.82 mi (6,886.10 km) |
| Castagneto Carducci to Smyrna (Georgia) | 4,898.84 mi (7,883.93 km) |
| Castagneto Carducci to Smyrna (Tennessee) | 4,893.00 mi (7,874.52 km) |
| Castagneto Carducci to Snellville (Georgia) | 4,876.50 mi (7,847.96 km) |
| Castagneto Carducci to Snoqualmie (Washington) | 5,532.94 mi (8,904.41 km) |
| Castagneto Carducci to Snyder (Texas) | 5,643.57 mi (9,082.44 km) |
| Castagneto Carducci to Socastee (South Carolina) | 4,659.87 mi (7,499.34 km) |
| Castagneto Carducci to Socorro (Texas) | 5,908.11 mi (9,508.18 km) |
| Castagneto Carducci to Soddy-Daisy (Tennessee) | 4,866.11 mi (7,831.24 km) |
| Castagneto Carducci to Solana Beach (California) | 6,229.80 mi (10,025.89 km) |
| Castagneto Carducci to Soledad (California) | 6,162.10 mi (9,916.94 km) |
| Castagneto Carducci to Solon (Ohio) | 4,446.39 mi (7,155.78 km) |
| Castagneto Carducci to Somers Point (New Jersey) | 4,233.64 mi (6,813.39 km) |
| Castagneto Carducci to Somerset (Kentucky) | 4,761.94 mi (7,663.60 km) |
| Castagneto Carducci to Somerset (New Jersey) | 4,183.27 mi (6,732.33 km) |
