| Alpen to Castelo Branco | 1,053.32 mi (1,695.15 km) |
| Alpen to Castro Daire | 1,006.67 mi (1,620.09 km) |
| Alpen to Celorico de Basto | 982.78 mi (1,581.63 km) |
| Alpen to Chamusca | 1,109.86 mi (1,786.15 km) |
| Alpen to Chaves | 946.36 mi (1,523.02 km) |
| Alpen to Cinfaes | 1,002.34 mi (1,613.11 km) |
| Alpen to Coimbra | 1,060.26 mi (1,706.33 km) |
| Alpen to Condeixa-a-Nova | 1,067.72 mi (1,718.32 km) |
| Alpen to Corroios | 1,172.04 mi (1,886.22 km) |
| Alpen to Coruche | 1,133.41 mi (1,824.04 km) |
| Alpen to Costa de Caparica | 1,172.99 mi (1,887.75 km) |
| Alpen to Covilha | 1,027.04 mi (1,652.86 km) |
| Alpen to Eiras | 1,058.39 mi (1,703.32 km) |
| Alpen to Elvas | 1,097.59 mi (1,766.39 km) |
| Alpen to Entroncamento | 1,102.91 mi (1,774.97 km) |
