| Asker to Setubal | 1,697.48 mi (2,731.83 km) |
| Asker to Sever do Vouga | 1,546.90 mi (2,489.49 km) |
| Asker to Silves | 1,773.06 mi (2,853.47 km) |
| Asker to Sines | 1,733.01 mi (2,789.01 km) |
| Asker to Sintra | 1,690.97 mi (2,721.36 km) |
| Asker to Sobrado de Paiva | 1,525.93 mi (2,455.74 km) |
| Asker to Sobral de Monte Agraco | 1,671.97 mi (2,690.77 km) |
| Asker to Soure | 1,595.62 mi (2,567.91 km) |
| Asker to Tabua | 1,562.86 mi (2,515.18 km) |
| Asker to Tavira | 1,761.54 mi (2,834.93 km) |
| Asker to Tomar | 1,619.18 mi (2,605.82 km) |
| Asker to Tondela | 1,554.21 mi (2,501.26 km) |
| Asker to Torre de Moncorvo | 1,490.66 mi (2,398.98 km) |
| Asker to Torres Novas | 1,630.12 mi (2,623.43 km) |
| Asker to Torres Vedras | 1,670.40 mi (2,688.24 km) |
