| Porthcawl to Cascais | 925.42 mi (1,489.32 km) |
| Porthcawl to Castelo Branco | 826.30 mi (1,329.81 km) |
| Porthcawl to Castro Daire | 758.32 mi (1,220.40 km) |
| Porthcawl to Celorico de Basto | 726.85 mi (1,169.75 km) |
| Porthcawl to Chamusca | 869.26 mi (1,398.94 km) |
| Porthcawl to Chaves | 696.20 mi (1,120.43 km) |
| Porthcawl to Cinfaes | 747.54 mi (1,203.06 km) |
| Porthcawl to Coimbra | 810.89 mi (1,305.00 km) |
| Porthcawl to Condeixa-a-Nova | 818.14 mi (1,316.68 km) |
| Porthcawl to Corroios | 927.36 mi (1,492.43 km) |
| Porthcawl to Coruche | 896.21 mi (1,442.30 km) |
| Porthcawl to Costa de Caparica | 926.54 mi (1,491.12 km) |
| Porthcawl to Covilha | 794.74 mi (1,279.01 km) |
| Porthcawl to Eiras | 808.74 mi (1,301.55 km) |
| Porthcawl to Elvas | 887.38 mi (1,428.09 km) |
