| Smiltene to Sestu | 1,462.45 mi (2,353.59 km) |
| Smiltene to Settimo Torinese | 1,148.84 mi (1,848.88 km) |
| Smiltene to Seveso | 1,081.53 mi (1,740.55 km) |
| Smiltene to Sezze | 1,237.84 mi (1,992.11 km) |
| Smiltene to Siano | 1,252.05 mi (2,014.98 km) |
| Smiltene to Siena | 1,162.18 mi (1,870.35 km) |
| Smiltene to Signa | 1,139.44 mi (1,833.76 km) |
| Smiltene to Silea | 998.03 mi (1,606.17 km) |
| Smiltene to Silvi Paese | 1,150.10 mi (1,850.91 km) |
| Smiltene to Sinalunga | 1,159.06 mi (1,865.33 km) |
| Smiltene to Siniscola | 1,369.23 mi (2,203.56 km) |
| Smiltene to Sinnai | 1,459.69 mi (2,349.15 km) |
| Smiltene to Siracusa | 1,488.35 mi (2,395.27 km) |
| Smiltene to Solaro | 1,084.62 mi (1,745.53 km) |
| Smiltene to Soliera | 1,086.59 mi (1,748.70 km) |
