| Clemson to Sestu | 4,848.10 mi (7,802.26 km) |
| Clemson to Settimo Torinese | 4,600.32 mi (7,403.50 km) |
| Clemson to Seveso | 4,643.96 mi (7,473.73 km) |
| Clemson to Sezze | 4,954.05 mi (7,972.78 km) |
| Clemson to Siano | 5,051.46 mi (8,129.53 km) |
| Clemson to Siena | 4,814.84 mi (7,748.74 km) |
| Clemson to Signa | 4,789.18 mi (7,707.45 km) |
| Clemson to Silea | 4,778.48 mi (7,690.22 km) |
| Clemson to Silvi Paese | 4,963.44 mi (7,987.88 km) |
| Clemson to Sinalunga | 4,835.92 mi (7,782.67 km) |
| Clemson to Siniscola | 4,833.30 mi (7,778.44 km) |
| Clemson to Sinnai | 4,853.19 mi (7,810.45 km) |
| Clemson to Siracusa | 5,215.80 mi (8,394.02 km) |
| Clemson to Solaro | 4,642.54 mi (7,471.45 km) |
| Clemson to Soliera | 4,750.06 mi (7,644.48 km) |
