| San Carlos to Sestu | 6,298.09 mi (10,135.79 km) |
| San Carlos to Settimo Torinese | 5,935.42 mi (9,552.13 km) |
| San Carlos to Seveso | 5,947.39 mi (9,571.39 km) |
| San Carlos to Sezze | 6,294.60 mi (10,130.18 km) |
| San Carlos to Siano | 6,381.41 mi (10,269.89 km) |
| San Carlos to Siena | 6,140.93 mi (9,882.87 km) |
| San Carlos to Signa | 6,107.99 mi (9,829.86 km) |
| San Carlos to Silea | 6,035.45 mi (9,713.12 km) |
| San Carlos to Silvi Paese | 6,263.91 mi (10,080.79 km) |
| San Carlos to Sinalunga | 6,158.26 mi (9,910.77 km) |
| San Carlos to Siniscola | 6,246.13 mi (10,052.17 km) |
| San Carlos to Sinnai | 6,301.45 mi (10,141.21 km) |
| San Carlos to Siracusa | 6,615.74 mi (10,647.01 km) |
| San Carlos to Solaro | 5,947.42 mi (9,571.45 km) |
| San Carlos to Soliera | 6,049.13 mi (9,735.14 km) |
