| Portsmouth to Benavente | 899.75 mi (1,448.01 km) |
| Portsmouth to Bombarral | 887.94 mi (1,429.00 km) |
| Portsmouth to Bougado | 744.96 mi (1,198.89 km) |
| Portsmouth to Braga | 728.55 mi (1,172.50 km) |
| Portsmouth to Braganca | 677.65 mi (1,090.58 km) |
| Portsmouth to Cabeceiras de Basto | 720.63 mi (1,159.73 km) |
| Portsmouth to Cacem | 922.77 mi (1,485.05 km) |
| Portsmouth to Cadaval | 888.97 mi (1,430.66 km) |
| Portsmouth to Caldas da Rainha | 878.71 mi (1,414.15 km) |
| Portsmouth to Calheta | 1,491.86 mi (2,400.92 km) |
| Portsmouth to Camara de Lobos | 1,488.55 mi (2,395.60 km) |
| Portsmouth to Canico | 1,488.37 mi (2,395.30 km) |
| Portsmouth to Cantanhede | 807.76 mi (1,299.97 km) |
| Portsmouth to Carregal do Sal | 789.86 mi (1,271.16 km) |
| Portsmouth to Cartaxo | 887.69 mi (1,428.60 km) |
