| Altenburg to Castelo Branco | 1,230.32 mi (1,980.01 km) |
| Altenburg to Castro Daire | 1,194.76 mi (1,922.77 km) |
| Altenburg to Celorico de Basto | 1,175.04 mi (1,891.04 km) |
| Altenburg to Chamusca | 1,290.04 mi (2,076.12 km) |
| Altenburg to Chaves | 1,138.22 mi (1,831.78 km) |
| Altenburg to Cinfaes | 1,193.21 mi (1,920.28 km) |
| Altenburg to Coimbra | 1,246.28 mi (2,005.69 km) |
| Altenburg to Condeixa-a-Nova | 1,253.49 mi (2,017.29 km) |
| Altenburg to Corroios | 1,351.46 mi (2,174.97 km) |
| Altenburg to Coruche | 1,311.14 mi (2,110.07 km) |
| Altenburg to Costa de Caparica | 1,353.14 mi (2,177.67 km) |
| Altenburg to Covilha | 1,207.56 mi (1,943.38 km) |
| Altenburg to Eiras | 1,244.60 mi (2,002.99 km) |
| Altenburg to Elvas | 1,265.19 mi (2,036.12 km) |
| Altenburg to Entroncamento | 1,283.81 mi (2,066.09 km) |
