| Ilmenau to Setubal | 1,279.46 mi (2,059.09 km) |
| Ilmenau to Sever do Vouga | 1,151.22 mi (1,852.71 km) |
| Ilmenau to Silves | 1,332.98 mi (2,145.22 km) |
| Ilmenau to Sines | 1,307.70 mi (2,104.54 km) |
| Ilmenau to Sintra | 1,283.86 mi (2,066.18 km) |
| Ilmenau to Sobrado de Paiva | 1,133.30 mi (1,823.87 km) |
| Ilmenau to Sobral de Monte Agraco | 1,264.16 mi (2,034.46 km) |
| Ilmenau to Soure | 1,194.02 mi (1,921.59 km) |
| Ilmenau to Tabua | 1,156.25 mi (1,860.80 km) |
| Ilmenau to Tavira | 1,309.44 mi (2,107.34 km) |
| Ilmenau to Tomar | 1,207.92 mi (1,943.96 km) |
| Ilmenau to Tondela | 1,150.76 mi (1,851.97 km) |
| Ilmenau to Torre de Moncorvo | 1,082.25 mi (1,741.71 km) |
| Ilmenau to Torres Novas | 1,218.86 mi (1,961.56 km) |
| Ilmenau to Torres Vedras | 1,265.18 mi (2,036.11 km) |
