| Loudoun Valley Estates to Sesimbra | 3,595.33 mi (5,786.12 km) |
| Loudoun Valley Estates to Setubal | 3,603.37 mi (5,799.06 km) |
| Loudoun Valley Estates to Sever do Vouga | 3,569.86 mi (5,745.13 km) |
| Loudoun Valley Estates to Silves | 3,663.70 mi (5,896.16 km) |
| Loudoun Valley Estates to Sines | 3,620.63 mi (5,826.84 km) |
| Loudoun Valley Estates to Sintra | 3,571.29 mi (5,747.43 km) |
| Loudoun Valley Estates to Sobrado de Paiva | 3,566.91 mi (5,740.38 km) |
| Loudoun Valley Estates to Sobral de Monte Agraco | 3,577.03 mi (5,756.68 km) |
| Loudoun Valley Estates to Soure | 3,574.85 mi (5,753.16 km) |
| Loudoun Valley Estates to Tabua | 3,596.05 mi (5,787.29 km) |
| Loudoun Valley Estates to Tavira | 3,705.17 mi (5,962.89 km) |
| Loudoun Valley Estates to Tomar | 3,597.47 mi (5,789.58 km) |
| Loudoun Valley Estates to Tondela | 3,589.29 mi (5,776.40 km) |
| Loudoun Valley Estates to Torre de Moncorvo | 3,617.19 mi (5,821.31 km) |
| Loudoun Valley Estates to Torres Novas | 3,595.35 mi (5,786.16 km) |
