| Huntsville to Sestu | 5,024.66 mi (8,086.41 km) |
| Huntsville to Settimo Torinese | 4,765.26 mi (7,668.95 km) |
| Huntsville to Seveso | 4,806.48 mi (7,735.28 km) |
| Huntsville to Sezze | 5,122.26 mi (8,243.48 km) |
| Huntsville to Siano | 5,219.51 mi (8,400.00 km) |
| Huntsville to Siena | 4,980.74 mi (8,015.72 km) |
| Huntsville to Signa | 4,954.25 mi (7,973.09 km) |
| Huntsville to Silea | 4,938.06 mi (7,947.03 km) |
| Huntsville to Silvi Paese | 5,128.32 mi (8,253.23 km) |
| Huntsville to Sinalunga | 5,001.66 mi (8,049.40 km) |
| Huntsville to Siniscola | 5,006.69 mi (8,057.48 km) |
| Huntsville to Sinnai | 5,029.64 mi (8,094.43 km) |
| Huntsville to Siracusa | 5,390.78 mi (8,675.63 km) |
| Huntsville to Solaro | 4,805.18 mi (7,733.19 km) |
| Huntsville to Soliera | 4,913.08 mi (7,906.85 km) |
