| Silver Spring to Sesimbra | 3,570.59 mi (5,746.31 km) |
| Silver Spring to Setubal | 3,578.66 mi (5,759.29 km) |
| Silver Spring to Sever do Vouga | 3,545.58 mi (5,706.06 km) |
| Silver Spring to Silves | 3,638.80 mi (5,856.08 km) |
| Silver Spring to Sines | 3,595.82 mi (5,786.92 km) |
| Silver Spring to Sintra | 3,546.59 mi (5,707.69 km) |
| Silver Spring to Sobrado de Paiva | 3,542.70 mi (5,701.42 km) |
| Silver Spring to Sobral de Monte Agraco | 3,552.39 mi (5,717.02 km) |
| Silver Spring to Soure | 3,550.42 mi (5,713.85 km) |
| Silver Spring to Tabua | 3,571.73 mi (5,748.14 km) |
| Silver Spring to Tavira | 3,680.30 mi (5,922.87 km) |
| Silver Spring to Tomar | 3,572.98 mi (5,750.16 km) |
| Silver Spring to Tondela | 3,564.99 mi (5,737.29 km) |
| Silver Spring to Torre de Moncorvo | 3,593.09 mi (5,782.51 km) |
| Silver Spring to Torres Novas | 3,570.83 mi (5,746.69 km) |
