| Ontario to Clacton-on-Sea | 5,448.32 mi (8,768.22 km) |
| Ontario to Clay Cross | 5,304.89 mi (8,537.39 km) |
| Ontario to Clayton | 5,264.80 mi (8,472.88 km) |
| Ontario to Clayton le Moors | 5,247.17 mi (8,444.50 km) |
| Ontario to Cleckheaton | 5,270.29 mi (8,481.72 km) |
| Ontario to Cleethorpes | 5,330.87 mi (8,579.21 km) |
| Ontario to Clevedon | 5,334.53 mi (8,585.10 km) |
| Ontario to Clifton | 5,323.97 mi (8,568.10 km) |
| Ontario to Clifton | 5,278.67 mi (8,495.20 km) |
| Ontario to Cliftonville | 5,475.32 mi (8,811.68 km) |
| Ontario to Clitheroe | 5,242.71 mi (8,437.33 km) |
| Ontario to Clydebank | 5,093.05 mi (8,196.48 km) |
| Ontario to Coalville | 5,325.91 mi (8,571.23 km) |
| Ontario to Coatbridge | 5,106.10 mi (8,217.48 km) |
| Ontario to Cobham | 5,419.75 mi (8,722.25 km) |
