| Clarksburg to Sesimbra | 3,576.95 mi (5,756.54 km) |
| Clarksburg to Setubal | 3,584.95 mi (5,769.42 km) |
| Clarksburg to Sever do Vouga | 3,550.93 mi (5,714.67 km) |
| Clarksburg to Silves | 3,645.54 mi (5,866.94 km) |
| Clarksburg to Sines | 3,602.33 mi (5,797.39 km) |
| Clarksburg to Sintra | 3,552.85 mi (5,717.75 km) |
| Clarksburg to Sobrado de Paiva | 3,547.91 mi (5,709.82 km) |
| Clarksburg to Sobral de Monte Agraco | 3,558.52 mi (5,726.89 km) |
| Clarksburg to Soure | 3,556.08 mi (5,722.96 km) |
| Clarksburg to Tabua | 3,577.18 mi (5,756.92 km) |
| Clarksburg to Tavira | 3,686.96 mi (5,933.60 km) |
| Clarksburg to Tomar | 3,578.79 mi (5,759.50 km) |
| Clarksburg to Tondela | 3,570.39 mi (5,745.99 km) |
| Clarksburg to Torre de Moncorvo | 3,598.10 mi (5,790.57 km) |
| Clarksburg to Torres Novas | 3,576.70 mi (5,756.15 km) |
