| Diest to Castelo Branco | 980.12 mi (1,577.35 km) |
| Diest to Castro Daire | 932.54 mi (1,500.77 km) |
| Diest to Celorico de Basto | 908.36 mi (1,461.86 km) |
| Diest to Chamusca | 1,036.28 mi (1,667.73 km) |
| Diest to Chaves | 872.01 mi (1,403.36 km) |
| Diest to Cinfaes | 927.99 mi (1,493.46 km) |
| Diest to Coimbra | 986.23 mi (1,587.18 km) |
| Diest to Condeixa-a-Nova | 993.70 mi (1,599.20 km) |
| Diest to Corroios | 1,098.45 mi (1,767.79 km) |
| Diest to Coruche | 1,060.02 mi (1,705.94 km) |
| Diest to Costa de Caparica | 1,099.33 mi (1,769.21 km) |
| Diest to Covilha | 953.54 mi (1,534.57 km) |
| Diest to Eiras | 984.35 mi (1,584.15 km) |
| Diest to Elvas | 1,025.34 mi (1,650.13 km) |
| Diest to Entroncamento | 1,029.27 mi (1,656.45 km) |
