| Houma to Sesimbra | 4,561.85 mi (7,341.59 km) |
| Houma to Setubal | 4,570.51 mi (7,355.53 km) |
| Houma to Sever do Vouga | 4,546.15 mi (7,316.31 km) |
| Houma to Silves | 4,625.56 mi (7,444.12 km) |
| Houma to Sines | 4,585.33 mi (7,379.37 km) |
| Houma to Sintra | 4,538.95 mi (7,304.73 km) |
| Houma to Sobrado de Paiva | 4,544.31 mi (7,313.37 km) |
| Houma to Sobral de Monte Agraco | 4,545.91 mi (7,315.94 km) |
| Houma to Soure | 4,548.40 mi (7,319.94 km) |
| Houma to Tabua | 4,571.38 mi (7,356.92 km) |
| Houma to Tavira | 4,667.91 mi (7,512.27 km) |
| Houma to Tomar | 4,569.56 mi (7,354.00 km) |
| Houma to Tondela | 4,565.11 mi (7,346.83 km) |
| Houma to Torre de Moncorvo | 4,596.19 mi (7,396.85 km) |
| Houma to Torres Novas | 4,566.79 mi (7,349.54 km) |
