| Colwyn Bay to Cascais | 1,043.91 mi (1,680.01 km) |
| Colwyn Bay to Castelo Branco | 947.91 mi (1,525.52 km) |
| Colwyn Bay to Castro Daire | 878.52 mi (1,413.84 km) |
| Colwyn Bay to Celorico de Basto | 846.56 mi (1,362.40 km) |
| Colwyn Bay to Chamusca | 989.27 mi (1,592.07 km) |
| Colwyn Bay to Chaves | 816.86 mi (1,314.62 km) |
| Colwyn Bay to Cinfaes | 867.15 mi (1,395.55 km) |
| Colwyn Bay to Coimbra | 930.46 mi (1,497.43 km) |
| Colwyn Bay to Condeixa-a-Nova | 937.63 mi (1,508.97 km) |
| Colwyn Bay to Corroios | 1,046.46 mi (1,684.11 km) |
| Colwyn Bay to Coruche | 1,016.35 mi (1,635.66 km) |
| Colwyn Bay to Costa de Caparica | 1,045.45 mi (1,682.48 km) |
| Colwyn Bay to Covilha | 916.14 mi (1,474.39 km) |
| Colwyn Bay to Eiras | 928.31 mi (1,493.97 km) |
| Colwyn Bay to Elvas | 1,009.87 mi (1,625.23 km) |
