| Portales to Clacton-on-Sea | 4,957.10 mi (7,977.69 km) |
| Portales to Clay Cross | 4,815.82 mi (7,750.31 km) |
| Portales to Clayton | 4,780.14 mi (7,692.89 km) |
| Portales to Clayton le Moors | 4,760.14 mi (7,660.70 km) |
| Portales to Cleckheaton | 4,785.45 mi (7,701.43 km) |
| Portales to Cleethorpes | 4,851.35 mi (7,807.49 km) |
| Portales to Clevedon | 4,823.00 mi (7,761.87 km) |
| Portales to Clifton | 4,833.36 mi (7,778.54 km) |
| Portales to Clifton | 4,798.77 mi (7,722.88 km) |
| Portales to Cliftonville | 4,981.51 mi (8,016.96 km) |
| Portales to Clitheroe | 4,756.60 mi (7,655.01 km) |
| Portales to Clydebank | 4,619.76 mi (7,434.79 km) |
| Portales to Coalville | 4,832.78 mi (7,777.61 km) |
| Portales to Coatbridge | 4,633.81 mi (7,457.40 km) |
| Portales to Cobham | 4,917.46 mi (7,913.88 km) |
