| Hwlffordd to Sesimbra | 944.14 mi (1,519.45 km) |
| Hwlffordd to Setubal | 936.60 mi (1,507.31 km) |
| Hwlffordd to Sever do Vouga | 781.43 mi (1,257.59 km) |
| Hwlffordd to Silves | 1,023.74 mi (1,647.54 km) |
| Hwlffordd to Sines | 975.07 mi (1,569.22 km) |
| Hwlffordd to Sintra | 923.13 mi (1,485.64 km) |
| Hwlffordd to Sobrado de Paiva | 760.09 mi (1,223.25 km) |
| Hwlffordd to Sobral de Monte Agraco | 905.76 mi (1,457.67 km) |
| Hwlffordd to Soure | 830.44 mi (1,336.46 km) |
| Hwlffordd to Tabua | 803.70 mi (1,293.43 km) |
| Hwlffordd to Tavira | 1,022.91 mi (1,646.21 km) |
| Hwlffordd to Tomar | 858.93 mi (1,382.32 km) |
| Hwlffordd to Tondela | 793.52 mi (1,277.04 km) |
| Hwlffordd to Torre de Moncorvo | 739.49 mi (1,190.10 km) |
| Hwlffordd to Torres Novas | 869.09 mi (1,398.66 km) |
