| Mount Prospect to Sesimbra | 4,011.20 mi (6,455.40 km) |
| Mount Prospect to Setubal | 4,017.95 mi (6,466.26 km) |
| Mount Prospect to Sever do Vouga | 3,964.83 mi (6,380.78 km) |
| Mount Prospect to Silves | 4,087.15 mi (6,577.62 km) |
| Mount Prospect to Sines | 4,039.56 mi (6,501.05 km) |
| Mount Prospect to Sintra | 3,985.26 mi (6,413.65 km) |
| Mount Prospect to Sobrado de Paiva | 3,959.05 mi (6,371.47 km) |
| Mount Prospect to Sobral de Monte Agraco | 3,988.51 mi (6,418.89 km) |
| Mount Prospect to Soure | 3,976.32 mi (6,399.27 km) |
| Mount Prospect to Tabua | 3,993.08 mi (6,426.25 km) |
| Mount Prospect to Tavira | 4,126.58 mi (6,641.10 km) |
| Mount Prospect to Tomar | 4,001.95 mi (6,440.52 km) |
| Mount Prospect to Tondela | 3,985.19 mi (6,413.54 km) |
| Mount Prospect to Torre de Moncorvo | 4,004.40 mi (6,444.46 km) |
| Mount Prospect to Torres Novas | 4,001.27 mi (6,439.43 km) |
