| Horizon West to Clacton-on-Sea | 4,402.57 mi (7,085.24 km) |
| Horizon West to Clay Cross | 4,277.41 mi (6,883.83 km) |
| Horizon West to Clayton | 4,253.41 mi (6,845.21 km) |
| Horizon West to Clayton le Moors | 4,230.56 mi (6,808.43 km) |
| Horizon West to Cleckheaton | 4,257.91 mi (6,852.45 km) |
| Horizon West to Cleethorpes | 4,328.43 mi (6,965.94 km) |
| Horizon West to Clevedon | 4,239.85 mi (6,823.38 km) |
| Horizon West to Clifton | 4,290.45 mi (6,904.81 km) |
| Horizon West to Clifton | 4,279.70 mi (6,887.52 km) |
| Horizon West to Cliftonville | 4,419.91 mi (7,113.16 km) |
| Horizon West to Clitheroe | 4,229.13 mi (6,806.13 km) |
| Horizon West to Clydebank | 4,129.70 mi (6,646.10 km) |
| Horizon West to Coalville | 4,284.98 mi (6,896.01 km) |
| Horizon West to Coatbridge | 4,144.40 mi (6,669.77 km) |
| Horizon West to Cobham | 4,344.64 mi (6,992.02 km) |
