| Drogheda to Castelo Branco | 961.78 mi (1,547.84 km) |
| Drogheda to Castro Daire | 888.46 mi (1,429.84 km) |
| Drogheda to Celorico de Basto | 855.43 mi (1,376.69 km) |
| Drogheda to Chamusca | 997.56 mi (1,605.42 km) |
| Drogheda to Chaves | 828.96 mi (1,334.08 km) |
| Drogheda to Cinfaes | 875.51 mi (1,408.99 km) |
| Drogheda to Coimbra | 938.05 mi (1,509.64 km) |
| Drogheda to Condeixa-a-Nova | 944.89 mi (1,520.65 km) |
| Drogheda to Corroios | 1,051.68 mi (1,692.51 km) |
| Drogheda to Coruche | 1,024.82 mi (1,649.29 km) |
| Drogheda to Costa de Caparica | 1,050.13 mi (1,690.03 km) |
| Drogheda to Covilha | 929.58 mi (1,496.02 km) |
| Drogheda to Eiras | 935.89 mi (1,506.17 km) |
| Drogheda to Elvas | 1,026.61 mi (1,652.16 km) |
| Drogheda to Entroncamento | 989.55 mi (1,592.53 km) |
