| Champaign to Sestu | 4,877.73 mi (7,849.95 km) |
| Champaign to Settimo Torinese | 4,589.80 mi (7,386.57 km) |
| Champaign to Seveso | 4,624.99 mi (7,443.21 km) |
| Champaign to Sezze | 4,952.68 mi (7,970.57 km) |
| Champaign to Siano | 5,049.00 mi (8,125.57 km) |
| Champaign to Siena | 4,806.28 mi (7,734.95 km) |
| Champaign to Signa | 4,777.92 mi (7,689.32 km) |
| Champaign to Silea | 4,748.99 mi (7,642.77 km) |
| Champaign to Silvi Paese | 4,950.55 mi (7,967.13 km) |
| Champaign to Sinalunga | 4,826.70 mi (7,767.83 km) |
| Champaign to Siniscola | 4,851.18 mi (7,807.22 km) |
| Champaign to Sinnai | 4,882.39 mi (7,857.44 km) |
| Champaign to Siracusa | 5,237.33 mi (8,428.66 km) |
| Champaign to Solaro | 4,623.97 mi (7,441.57 km) |
| Champaign to Soliera | 4,732.15 mi (7,615.66 km) |
