| National City to Clacton-on-Sea | 5,511.18 mi (8,869.39 km) |
| National City to Clay Cross | 5,367.78 mi (8,638.61 km) |
| National City to Clayton | 5,328.15 mi (8,574.82 km) |
| National City to Clayton le Moors | 5,310.21 mi (8,545.95 km) |
| National City to Cleckheaton | 5,333.62 mi (8,583.64 km) |
| National City to Cleethorpes | 5,394.90 mi (8,682.26 km) |
| National City to Clevedon | 5,394.79 mi (8,682.07 km) |
| National City to Clifton | 5,386.71 mi (8,669.07 km) |
| National City to Clifton | 5,342.58 mi (8,598.05 km) |
| National City to Cliftonville | 5,537.92 mi (8,912.42 km) |
| National City to Clitheroe | 5,305.86 mi (8,538.95 km) |
| National City to Clydebank | 5,157.42 mi (8,300.07 km) |
| National City to Coalville | 5,388.36 mi (8,671.73 km) |
| National City to Coatbridge | 5,170.60 mi (8,321.28 km) |
| National City to Cobham | 5,481.26 mi (8,821.23 km) |
