| Billdal to Sesimbra | 1,626.78 mi (2,618.05 km) |
| Billdal to Setubal | 1,616.51 mi (2,601.53 km) |
| Billdal to Sever do Vouga | 1,470.10 mi (2,365.90 km) |
| Billdal to Silves | 1,686.76 mi (2,714.59 km) |
| Billdal to Sines | 1,650.42 mi (2,656.09 km) |
| Billdal to Sintra | 1,612.91 mi (2,595.73 km) |
| Billdal to Sobrado de Paiva | 1,449.64 mi (2,332.97 km) |
| Billdal to Sobral de Monte Agraco | 1,593.50 mi (2,564.48 km) |
| Billdal to Soure | 1,517.90 mi (2,442.82 km) |
| Billdal to Tabua | 1,483.36 mi (2,387.23 km) |
| Billdal to Tavira | 1,671.78 mi (2,690.46 km) |
| Billdal to Tomar | 1,539.15 mi (2,477.02 km) |
| Billdal to Tondela | 1,475.44 mi (2,374.49 km) |
| Billdal to Torre de Moncorvo | 1,409.66 mi (2,268.63 km) |
| Billdal to Torres Novas | 1,550.22 mi (2,494.84 km) |
