| Twickenham to Benavente | 954.28 mi (1,535.76 km) |
| Twickenham to Bombarral | 942.66 mi (1,517.06 km) |
| Twickenham to Bougado | 799.88 mi (1,287.28 km) |
| Twickenham to Braga | 783.47 mi (1,260.88 km) |
| Twickenham to Braganca | 731.91 mi (1,177.89 km) |
| Twickenham to Cabeceiras de Basto | 775.42 mi (1,247.92 km) |
| Twickenham to Cacem | 977.45 mi (1,573.05 km) |
| Twickenham to Cadaval | 943.67 mi (1,518.68 km) |
| Twickenham to Caldas da Rainha | 933.46 mi (1,502.25 km) |
| Twickenham to Calheta | 1,546.85 mi (2,489.41 km) |
| Twickenham to Camara de Lobos | 1,543.56 mi (2,484.12 km) |
| Twickenham to Canico | 1,543.39 mi (2,483.84 km) |
| Twickenham to Cantanhede | 862.51 mi (1,388.07 km) |
| Twickenham to Carregal do Sal | 844.39 mi (1,358.91 km) |
| Twickenham to Cartaxo | 942.25 mi (1,516.41 km) |
