| Montecatini Terme to Smyrna (Delaware) | 4,262.49 mi (6,859.81 km) |
| Montecatini Terme to Smyrna (Georgia) | 4,882.46 mi (7,857.56 km) |
| Montecatini Terme to Smyrna (Tennessee) | 4,874.29 mi (7,844.41 km) |
| Montecatini Terme to Snellville (Georgia) | 4,860.36 mi (7,822.00 km) |
| Montecatini Terme to Snoqualmie (Washington) | 5,494.59 mi (8,842.69 km) |
| Montecatini Terme to Snyder (Texas) | 5,620.07 mi (9,044.64 km) |
| Montecatini Terme to Socastee (South Carolina) | 4,646.20 mi (7,477.34 km) |
| Montecatini Terme to Socorro (Texas) | 5,882.57 mi (9,467.08 km) |
| Montecatini Terme to Soddy-Daisy (Tennessee) | 4,848.49 mi (7,802.89 km) |
| Montecatini Terme to Solana Beach (California) | 6,198.36 mi (9,975.29 km) |
| Montecatini Terme to Soledad (California) | 6,127.55 mi (9,861.34 km) |
| Montecatini Terme to Solon (Ohio) | 4,426.13 mi (7,123.17 km) |
| Montecatini Terme to Somers Point (New Jersey) | 4,217.71 mi (6,787.74 km) |
| Montecatini Terme to Somerset (Kentucky) | 4,743.34 mi (7,633.68 km) |
| Montecatini Terme to Somerset (New Jersey) | 4,166.44 mi (6,705.24 km) |
