| Holyhead to Benavente | 1,010.40 mi (1,626.08 km) |
| Holyhead to Bombarral | 993.36 mi (1,598.66 km) |
| Holyhead to Bougado | 847.04 mi (1,363.18 km) |
| Holyhead to Braga | 831.20 mi (1,337.69 km) |
| Holyhead to Braganca | 800.79 mi (1,288.75 km) |
| Holyhead to Cabeceiras de Basto | 828.61 mi (1,333.52 km) |
| Holyhead to Cacem | 1,028.68 mi (1,655.50 km) |
| Holyhead to Cadaval | 995.16 mi (1,601.56 km) |
| Holyhead to Caldas da Rainha | 983.73 mi (1,583.15 km) |
| Holyhead to Calheta | 1,551.43 mi (2,496.79 km) |
| Holyhead to Camara de Lobos | 1,549.74 mi (2,494.06 km) |
| Holyhead to Canico | 1,550.79 mi (2,495.75 km) |
| Holyhead to Cantanhede | 914.64 mi (1,471.97 km) |
| Holyhead to Carregal do Sal | 903.47 mi (1,453.99 km) |
| Holyhead to Cartaxo | 997.77 mi (1,605.75 km) |
