| Castelo Branco to Aberbargoed | 845.94 mi (1,361.41 km) |
| Castelo Branco to Aberdare | 844.53 mi (1,359.14 km) |
| Castelo Branco to Aberdeen | 1,221.86 mi (1,966.39 km) |
| Castelo Branco to Abergavenny | 856.83 mi (1,378.93 km) |
| Castelo Branco to Abergele | 948.32 mi (1,526.17 km) |
| Castelo Branco to Abertawe | 832.83 mi (1,340.31 km) |
| Castelo Branco to Abertillery | 849.24 mi (1,366.73 km) |
| Castelo Branco to Aberystwyth | 885.40 mi (1,424.91 km) |
| Castelo Branco to Abingdon | 871.14 mi (1,401.96 km) |
| Castelo Branco to Abram | 973.64 mi (1,566.92 km) |
| Castelo Branco to Accrington | 992.46 mi (1,597.21 km) |
| Castelo Branco to Acomb | 1,021.16 mi (1,643.40 km) |
| Castelo Branco to Acton | 879.29 mi (1,415.08 km) |
| Castelo Branco to Addlestone | 866.22 mi (1,394.05 km) |
| Castelo Branco to Adel | 1,008.17 mi (1,622.49 km) |
