| Irthlingborough to Clacton-on-Sea | 83.31 mi (134.07 km) |
| Irthlingborough to Clay Cross | 66.95 mi (107.75 km) |
| Irthlingborough to Clayton | 112.38 mi (180.86 km) |
| Irthlingborough to Clayton le Moors | 124.31 mi (200.06 km) |
| Irthlingborough to Cleckheaton | 107.14 mi (172.42 km) |
| Irthlingborough to Cleethorpes | 88.45 mi (142.34 km) |
| Irthlingborough to Clevedon | 113.46 mi (182.60 km) |
| Irthlingborough to Clifton | 46.52 mi (74.86 km) |
| Irthlingborough to Clifton | 115.62 mi (186.08 km) |
| Irthlingborough to Cliftonville | 107.71 mi (173.34 km) |
| Irthlingborough to Clitheroe | 129.86 mi (208.98 km) |
| Irthlingborough to Clydebank | 290.69 mi (467.82 km) |
| Irthlingborough to Coalville | 42.09 mi (67.73 km) |
| Irthlingborough to Coatbridge | 280.80 mi (451.91 km) |
| Irthlingborough to Cobham | 69.30 mi (111.53 km) |
