| Frederick to Sesimbra | 3,578.82 mi (5,759.55 km) |
| Frederick to Setubal | 3,586.77 mi (5,772.35 km) |
| Frederick to Sever do Vouga | 3,551.96 mi (5,716.32 km) |
| Frederick to Silves | 3,647.75 mi (5,870.49 km) |
| Frederick to Sines | 3,604.34 mi (5,800.62 km) |
| Frederick to Sintra | 3,554.63 mi (5,720.63 km) |
| Frederick to Sobrado de Paiva | 3,548.82 mi (5,711.28 km) |
| Frederick to Sobral de Monte Agraco | 3,560.21 mi (5,729.61 km) |
| Frederick to Soure | 3,557.36 mi (5,725.02 km) |
| Frederick to Tabua | 3,578.30 mi (5,758.71 km) |
| Frederick to Tavira | 3,689.10 mi (5,937.03 km) |
| Frederick to Tomar | 3,580.20 mi (5,761.77 km) |
| Frederick to Tondela | 3,571.45 mi (5,747.70 km) |
| Frederick to Torre de Moncorvo | 3,598.83 mi (5,791.76 km) |
| Frederick to Torres Novas | 3,578.17 mi (5,758.51 km) |
