| Clemson to Sesena | 4,212.27 mi (6,779.00 km) |
| Clemson to Sestao | 4,162.82 mi (6,699.41 km) |
| Clemson to Sevilla | 4,174.79 mi (6,718.68 km) |
| Clemson to Sevilla La Nueva | 4,189.73 mi (6,742.72 km) |
| Clemson to Silla | 4,392.90 mi (7,069.69 km) |
| Clemson to Silleda | 3,929.06 mi (6,323.22 km) |
| Clemson to Sitges | 4,445.18 mi (7,153.82 km) |
| Clemson to Socuellamos | 4,278.36 mi (6,885.36 km) |
| Clemson to Soller | 4,531.01 mi (7,291.95 km) |
| Clemson to Solsona | 4,409.93 mi (7,097.10 km) |
| Clemson to Son Servera | 4,566.96 mi (7,349.82 km) |
| Clemson to Sonseca | 4,210.66 mi (6,776.40 km) |
| Clemson to Sopelana | 4,162.29 mi (6,698.56 km) |
| Clemson to Soria | 4,227.86 mi (6,804.08 km) |
| Clemson to Suances | 4,110.80 mi (6,615.69 km) |
