| Donaueschingen to Setubal | 1,087.21 mi (1,749.69 km) |
| Donaueschingen to Sever do Vouga | 968.36 mi (1,558.42 km) |
| Donaueschingen to Silves | 1,134.16 mi (1,825.25 km) |
| Donaueschingen to Sines | 1,113.01 mi (1,791.22 km) |
| Donaueschingen to Sintra | 1,094.51 mi (1,761.45 km) |
| Donaueschingen to Sobrado de Paiva | 951.90 mi (1,531.94 km) |
| Donaueschingen to Sobral de Monte Agraco | 1,075.01 mi (1,730.06 km) |
| Donaueschingen to Soure | 1,008.25 mi (1,622.62 km) |
| Donaueschingen to Tabua | 969.95 mi (1,560.98 km) |
| Donaueschingen to Tavira | 1,108.04 mi (1,783.22 km) |
| Donaueschingen to Tomar | 1,019.01 mi (1,639.94 km) |
| Donaueschingen to Tondela | 965.55 mi (1,553.90 km) |
| Donaueschingen to Torre de Moncorvo | 897.47 mi (1,444.34 km) |
| Donaueschingen to Torres Novas | 1,029.70 mi (1,657.15 km) |
| Donaueschingen to Torres Vedras | 1,076.75 mi (1,732.86 km) |
