| Upper Montclair to Clacton-on-Sea | 3,508.78 mi (5,646.83 km) |
| Upper Montclair to Clay Cross | 3,377.31 mi (5,435.25 km) |
| Upper Montclair to Clayton | 3,349.67 mi (5,390.78 km) |
| Upper Montclair to Clayton le Moors | 3,327.35 mi (5,354.86 km) |
| Upper Montclair to Cleckheaton | 3,354.46 mi (5,398.48 km) |
| Upper Montclair to Cleethorpes | 3,424.51 mi (5,511.22 km) |
| Upper Montclair to Clevedon | 3,353.20 mi (5,396.46 km) |
| Upper Montclair to Clifton | 3,391.82 mi (5,458.61 km) |
| Upper Montclair to Clifton | 3,374.15 mi (5,430.17 km) |
| Upper Montclair to Cliftonville | 3,528.52 mi (5,678.60 km) |
| Upper Montclair to Clitheroe | 3,325.31 mi (5,351.57 km) |
| Upper Montclair to Clydebank | 3,214.81 mi (5,173.73 km) |
| Upper Montclair to Coalville | 3,387.74 mi (5,452.04 km) |
| Upper Montclair to Coatbridge | 3,229.52 mi (5,197.41 km) |
| Upper Montclair to Cobham | 3,455.91 mi (5,561.74 km) |
