| Asten to Setubal | 1,137.48 mi (1,830.59 km) |
| Asten to Sever do Vouga | 997.16 mi (1,604.77 km) |
| Asten to Silves | 1,202.41 mi (1,935.09 km) |
| Asten to Sines | 1,169.54 mi (1,882.20 km) |
| Asten to Sintra | 1,136.95 mi (1,829.74 km) |
| Asten to Sobrado de Paiva | 977.59 mi (1,573.28 km) |
| Asten to Sobral de Monte Agraco | 1,117.27 mi (1,798.08 km) |
| Asten to Soure | 1,043.29 mi (1,679.01 km) |
| Asten to Tabua | 1,007.12 mi (1,620.81 km) |
| Asten to Tavira | 1,184.84 mi (1,906.82 km) |
| Asten to Tomar | 1,061.76 mi (1,708.74 km) |
| Asten to Tondela | 1,000.12 mi (1,609.53 km) |
| Asten to Torre de Moncorvo | 932.61 mi (1,500.89 km) |
| Asten to Torres Novas | 1,072.87 mi (1,726.61 km) |
| Asten to Torres Vedras | 1,117.15 mi (1,797.88 km) |
