| Horizon West to Caldicot | 4,242.32 mi (6,827.35 km) |
| Horizon West to Calne | 4,275.75 mi (6,881.15 km) |
| Horizon West to Cam | 4,257.11 mi (6,851.15 km) |
| Horizon West to Camberley | 4,330.51 mi (6,969.28 km) |
| Horizon West to Camborne | 4,149.69 mi (6,678.29 km) |
| Horizon West to Cambridge | 4,353.62 mi (7,006.47 km) |
| Horizon West to Cambuslang | 4,139.38 mi (6,661.68 km) |
| Horizon West to Canford Cliffs | 4,289.12 mi (6,902.68 km) |
| Horizon West to Cannock | 4,258.36 mi (6,853.17 km) |
| Horizon West to Canterbury | 4,408.06 mi (7,094.09 km) |
| Horizon West to Carlisle | 4,195.88 mi (6,752.62 km) |
| Horizon West to Carlton Colville | 4,414.45 mi (7,104.37 km) |
| Horizon West to Carluke | 4,152.97 mi (6,683.56 km) |
| Horizon West to Carnoustie | 4,188.67 mi (6,741.01 km) |
| Horizon West to Carshalton | 4,354.26 mi (7,007.51 km) |
