| Castelo Branco to Costessey | 978.62 mi (1,574.93 km) |
| Castelo Branco to Cottingham | 1,020.24 mi (1,641.91 km) |
| Castelo Branco to Coulsdon | 869.92 mi (1,400.00 km) |
| Castelo Branco to Coventry | 915.27 mi (1,472.99 km) |
| Castelo Branco to Cowdenbeath | 1,141.50 mi (1,837.06 km) |
| Castelo Branco to Cowes | 813.21 mi (1,308.73 km) |
| Castelo Branco to Cowley | 876.28 mi (1,410.23 km) |
| Castelo Branco to Cowley | 876.47 mi (1,410.53 km) |
| Castelo Branco to Cramlington | 1,089.37 mi (1,753.17 km) |
| Castelo Branco to Cranleigh | 851.94 mi (1,371.06 km) |
| Castelo Branco to Crawley | 855.92 mi (1,377.47 km) |
| Castelo Branco to Crayford | 884.09 mi (1,422.81 km) |
| Castelo Branco to Crewe | 948.19 mi (1,525.97 km) |
| Castelo Branco to Crigglestone | 995.55 mi (1,602.19 km) |
| Castelo Branco to Cromer | 996.80 mi (1,604.19 km) |
