| Smithville to Sestu | 5,174.49 mi (8,327.53 km) |
| Smithville to Settimo Torinese | 4,873.38 mi (7,842.94 km) |
| Smithville to Seveso | 4,905.15 mi (7,894.07 km) |
| Smithville to Sezze | 5,238.12 mi (8,429.94 km) |
| Smithville to Siano | 5,333.62 mi (8,583.64 km) |
| Smithville to Siena | 5,089.62 mi (8,190.96 km) |
| Smithville to Signa | 5,060.36 mi (8,143.86 km) |
| Smithville to Silea | 5,024.36 mi (8,085.92 km) |
| Smithville to Silvi Paese | 5,231.59 mi (8,419.43 km) |
| Smithville to Sinalunga | 5,109.71 mi (8,223.28 km) |
| Smithville to Siniscola | 5,144.01 mi (8,278.48 km) |
| Smithville to Sinnai | 5,178.97 mi (8,334.75 km) |
| Smithville to Siracusa | 5,529.96 mi (8,899.61 km) |
| Smithville to Solaro | 4,904.29 mi (7,892.69 km) |
| Smithville to Soliera | 5,012.22 mi (8,066.39 km) |
